Author: "D. Villamarin" / Topic: physics - Searchworks@Jio Institute Digital Library Search Results

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89 results on '"D. Villamarin"'

1. Extended MSM method to estimate the reactivity of a sub-critical core driven by an accelerator based neutron source

Author: François-René Lecolley, G. Lehaut, G. Vittiglio, Nadia Messaoudi, X. Doligez, N. Marie, A. Krasa, W. Uyttenhove, D. Villamarin, J. Wagemans, T. Chevret, J.L. Lecouey, A. Kochetkov, F. Mellier, V. Bécares, S. Chabod, A. Billebaud, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), AREVA NP Lyon, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre d'Etude de l'Energie Nucléaire (SCK-CEN), Centro de Investigaciones Energéticas Medioambientales y Tecnológicas [Madrid] (CIEMAT), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, ads, [PHYS.PHYS]Physics [physics]/Physics [physics], 010308 nuclear & particles physics, QC1-999, Detector, msm method, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Charged particle, Computational physics, Core (optical fiber), reactivity monitoring, 0103 physical sciences, Neutron source, Neutron, Multiplication, 010306 general physics, accelerator based neutron source, Energy (signal processing), Intensity (heat transfer)
Abstract: ISBN 978-1-5272-6447-2; International audience; The Modified Source Multiplication method is used to determine an unknown reactivity level of a reactor from a known one if one has access to the detector counting for both levels when the reactor is fed by a constant neutron source like an Am-Be source. When available, an accelerator driven source, in continuous mode, can be useful as its intensity can be tunable and then adapted to the experimental conditions. However, in that case, the MSM technique must be extended to account for an external source whose intensity, energy and angular distributions can vary from one measurement to another. In this paper, this Modified Multi-Source Multiplication (MMSM) method is applied to measurements done during the FREYA project in the GUINEVERE facility, operated with the GENEPI-3C accelerator providing a mixture of (D,T) and (D,D) neutrons. The monitoring of these sources through the detection of the associated charged particles allows the calculation of the MMSM factors and the estimate of the reactivity values. The results are compared in different configurations with the reactivity obtained with an Am-Be source or in dynamic measurements performed with GENEPI-3C. Their excellent agreement shows the possibility of using such accelerator-based neutron sources for MSM measurements when they are correctly monitored. This is of great interest for deep sub-critical level characterization for which detector count rates per source neutrons might be low.
Published: 2020

2. Validation of the fission yield and decay data libraries with the 10 s-delayed235Ufissionγ-ray energy spectrum

Author: F. Álvarez-Velarde, V. Bécares, D. Cano-Ott, E. González-Romero, D. Villamarin, E. Mendoza, and T. Martínez
Subjects: Physics, Nuclear and High Energy Physics, Cold fission, Fission products, 010308 nuclear & particles physics, Fission, Isotopes of samarium, Fission product yield, 01 natural sciences, Nuclear physics, 0103 physical sciences, Uranium-235, Neutron, 010306 general physics, Long-lived fission product, Instrumentation
Abstract: We have measured with a LaCl 3 detector the γ -ray spectrum emitted by a 235 U enriched UO 2 fuel rod 10 s after being irradiated with thermal neutrons. The experimental results are compared with simulations performed with the fission product yield and radioactive decay data libraries present in the most recent releases of ENDF/B, JEFF and JENDL.
Published: 2017

3. Characterization of a CLYC detector for underground experiments

Author: A. Ianni, T. Martínez, E. Mendoza, P. Garcia Abia, A. R. García, A. Pérez de Rada, R. Santorelli, L. Romero, B. Montes, D. Villamarin, I. C. Bandac, and D. Cano-Ott
Subjects: Physics, Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Resolution (mass spectrometry), 010308 nuclear & particles physics, business.industry, 020209 energy, Detector, Monte Carlo method, FOS: Physical sciences, 02 engineering and technology, Instrumentation and Detectors (physics.ins-det), 01 natural sciences, 7. Clean energy, Characterization (materials science), Full width at half maximum, Optics, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Figure of merit, Neutron, business, Instrumentation, Large size
Abstract: Large size detectors based on Cs2LiYCl6:Ce (CLYC) are capable of performing a combined $\gamma$-ray and neutron spectrometry and constitute a promising technology for a wide range of applications in nuclear and high energy physics. Due to their novelty, the comprehensive characterization of the performance of individual CLYC detectors is of great importance for determining their range of applicability. In this work we report on a wide series measurements performed with a commercial 2"x2" CLYC crystal. Good energy and timing resolution values of 4.7% (@ 662 keV) and 1340 ps (FWHM), respectively, were achieved, and a neutron/$\gamma$ separation figure of merit value of 4.2 was obtained. A dedicated measurement for investigating the intrinsic background of the detector was performed at the Laboratorio Subterr\'aneo de Canfranc (Spain). It evidenced a sizeable contamination in the detector materials which poses limits in the use of CLYC in low background experiments. In addition, detailed Monte Carlo simulations with the GEANT4 toolkit were performed for modeling the response function of the CLYC detector to gamma-rays. An excellent agreement with the experimental data has been achieved., Comment: 30 pages, 22 figures. Submitted to Nuclear Instruments and Methods in Physics Research A
Published: 2017
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4. Evaluation of the criticality constant from Pulsed Neutron Source measurements in the Yalina-Booster subcritical assembly

Author: M. Fernández-Ordóñez, V. Bécares, D. Villamarin, Victor Bournos, E. González-Romero, Carl Berglöf, I. Serafimovich, Y. Fokov, and S. Mazanik
Subjects: Nuclear physics, Physics, Work (thermodynamics), Booster (rocketry), Nuclear Energy and Engineering, Criticality, Monte Carlo method, Neutron source, Mechanics, Exponential decay, Constant (mathematics)
Abstract: The prompt decay constant method and the area-ratio (Sjostrand) method constitute the reference techniques for measuring the reactivity of a subcritical system using Pulsed Neutron Source experiments (PNS). However, different experiments have shown that in many cases it is necessary to apply corrections to the experimental results in order to take into account spectral and spatial effects. In these cases, the approach usually followed is to develop different specific correction procedures for each method. In this work we discuss the validity of prompt decay constant method and the area-ratio method in the Yalina-Booster subcritical assembly and propose a general correction procedure based on Monte Carlo simulations.
Published: 2013

5. Neutron-induced fission cross section ofNp237in the keV to MeV range at the CERN n_TOF facility

Author: L. Sarchiapone, S. Andriamonje, G. Cortes, J. Marganiec, R. C. Haight, P. E. Koehler, H. Álvarez, Masayuki Igashira, K. Ioannidis, M. Oshima, C. Lamboudis, J. L. Tain, C. Paradela, E. Chiaveri, P. F. Mastinu, A. Dorochenko, J. Andrzejewski, G. Aerts, J. Cox, A. J. M. Plompen, Isabel Lopes, B. Haas, Matthias Heil, J. Pancin, E. Skordis, L. Audouin, F. Voss, P. Cennini, S. David, Roberto Capote, P.A. Assimakopoulos, Thomas Rauscher, F. Neves, P. M. Milazzo, A. Tsinganis, Y. Kadi, G. Tagliente, I. Duran, H. Frais-Koelbl, Carlos Guerrero, U. Abbondanno, M. Mosconi, P. Pavlopoulos, D. Karadimos, Nicola Colonna, C. Rubbia, M. Kokkoris, Michael Wiescher, V. Konovalov, F. Bečvář, Heinz Oberhummer, S. O'Brien, E. González-Romero, Isabel S. Gonçalves, K. C. Stamoulis, S. Marrone, W. Dridi, I. Savvidis, J. Salgado, D. Cano-Ott, Marco Calviani, M. Diakaki, A. Poch, Vasilis Vlachoudis, A. Lindote, M. Sedysheva, R. Terlizzi, A. Goverdovski, M. Kerveno, Rene Reifarth, E. Griesmayer, V. Ketlerov, A. Plukis, F. Alvarez-Velarde, A. Carrillo de Albornoz, C. Papadopoulos, M. Embid-Segura, L. Ferrant, L. Tavora, K. Fuji, Gerald Badurek, F. Käppeler, Paraskevi Demetriou, L. Fitzpatrick, F. Gramegna, Ralf Plag, R. Dolfini, A. Pavlik, J. M. Quesada, C. Eleftheriadis, M. Rosetti, C. Pretel, Manuel Lozano, C. Domingo-Pardo, L. Tassan-Got, M. C. Vincente, D. Villamarin, P. Rullhusen, M. Krtička, F. Calviño, W.I. Furman, L. Perrot, Corrie S. Moreau, R. Ferreira-Marques, S. Lukic, V. Chepel, A. Herrera-Martinez, N. Patronis, G. Rudolf, L. Marques, P. Vaz, Arnaud Ferrari, Aaron Couture, P. Baumann, Alberto Mengoni, S. Isaev, A. Ventura, R. Vlastou, E. Berthoumieux, G. Vannini, R. Gallino, K. Wisshak, D. Karamanis, H. Wendler, D. Kolokolov, H. Leeb, C. Stephan, F. Gunsing, Cristian Massimi, and E. Jericha
Subjects: Physics, Large Hadron Collider, 010308 nuclear & particles physics, Fission, Model parameters, 7. Clean energy, 01 natural sciences, Nuclear physics, 0103 physical sciences, Homogeneity (physics), Ionization chamber, Neutron cross section, Neutron, Atomic physics, Nuclear Experiment, 010306 general physics, Spectroscopy
Abstract: The neutron-induced fission cross section of Np237 was experimentally determined at the high-resolution and high-intensity facility n-TOF, at CERN, in the energy range 100 keV to 9 MeV, using the U235(n,f) and U238(n,f) cross section standards below and above 2 MeV, respectively. A fast ionization chamber was used in order to detect the fission fragments from the reactions and the targets were characterized as far as their mass and homogeneity are concerned by means of α spectroscopy and Rutherford backscattering spectroscopy respectively. Theoretical calculations within the Hauser-Feshbach formalism have been performed, employing the empire code, and the model parameters were tuned in order to successfully reproduce the experimental fission cross-sectional data and simultaneously all the competing reaction channels.
Published: 2016

6. Americium-241 integral radiative capture cross section in over-moderated neutron spectrum from pile oscillator measurements in the Minerve reactor

Author: A. Gruel, Arjan Plompen, V. Bécares, Paul Ros, Benoit Geslot, D. Villamarin, Peter Schillebeeckx, Pierre Leconte, L. Mathieu, Patrick Blaise, Gilles Noguere, Stefan Kopecky, amplexor, amplexor, CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centro de Investigaciones Energéticas Medioambientales y Tecnológicas [Madrid] (CIEMAT), JRC Institute for Reference Materials and Measurements [Geel] (IRMM), and European Commission - Joint Research Centre [Geel] (JRC)
Subjects: [PHYS.NUCL] Physics [physics]/Nuclear Theory [nucl-th], [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], [PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], QC1-999, AMSTRAMGRAM, Measure (physics), chemistry.chemical_element, Americium, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Nuclear physics, Cross section (physics), 0103 physical sciences, Thermal, Neutron, 010306 general physics, Physics, 010308 nuclear & particles physics, Oscillation, capture cross section, Nuclear data, Actinide, MINERVE, oscillation, chemistry, AMERICIUM 241
Abstract: An experimental program, called AMSTRAMGRAM, was recently conducted in the Minerve low power reactor operated by CEA Cadarache within the frame of the CHANDA initiative (Solving CHAllenges in Nuclear Data). Its aim was to measure the integral capture cross section of 241 Am in the thermal domain. Motivation of this work is driven by large differences in this actinide thermal point reported by major nuclear data libraries. The AMSTRAMGRAM experiment, that made use of well characterized EC-JRC americium samples, was based on the oscillation technique commonly implemented in the Minerve reactor. First results are presented and discussed in this article. A preliminary calculation scheme was used to compare measured and calculated results. It is shown that this work confirms a bias previously observed with JEFF-3.1.1 (C/E-1 = −10.5 ± 2%). On the opposite, the experiment is in close agreement with 241 Am thermal point reported in JEFF-3.2 (C/E-1 = 0.5 ± 2%).
Published: 2016

7. Towards the high-accuracy determination of the 238U fission cross section at the threshold region at CERN - n_TOF

Author: S. Valenta, N. Colonna, Carlos Guerrero, M. P. W. Chin, P. Zugec, Marco Calviani, V. Ketlerov, F. Roman, C. Le Naour, Masayuki Igashira, V. Bécares, J. Salgado, N. Patronis, K. Fraval, E. Leal-Cidoncha, G. Cortes, C. Eleftheriadis, Roberto Capote, J. Pancin, L. Cosentino, W. Mondelaers, Thomas Rauscher, A. K. Saxena, Arnaud Ferrari, G. Rudolf, P. Rullhusen, Y. Kadi, J. Marganiec, D. Karadimos, S. Andriamonje, W.I. Furman, M. Embid-Segura, J. Billowes, D. Cano-Ott, C. Santos, S. Heinitz, M. Diakaki, B. Berthier, M. B. Gómez-Hornillos, E. González-Romero, E. Chiaveri, P. Cennini, Christoph Langer, F. Cerutti, M. Kerveno, L. Sarchiapone, Michael Heil, M. J. Vermeulen, L. Plukis, K. Fujii, G. Giubrone, M. Mosconi, A. R. García, M. Wiesher, I. F. Gonçalves, P. F. Mastinu, V. Variale, Roberto Versaci, W. Dridi, M. Brugger, T. Ware, F. Voss, S. O'Brien, E. Mendoza, E. Jericha, Paolo Finocchiaro, Dorothea Schumann, Diego Tarrio, Rene Reifarth, F. Kaeppeler, Stefan Schmidt, P. Pavlopoulos, Javier Praena, S. Lo Meo, E. Griesmayer, S. David, Srinivasan Ganesan, R. Terlizzi, P. Baumann, Vittorio Boccone, D. G. Jenkins, J. M. Quesada, Peter Schillebeeckx, L. Tassan-Got, A. Manousos, D. Bosnar, G. Tagliente, F. Mingrone, J. Andrzejewski, G. Aerts, P. Gurusamy, Ralf Plag, M. Kokkoris, Alberto Mengoni, M. Krtička, F. Calviño, M. A. Cortés-Giraldo, L. Ferrant, I. Duran, H. Álvarez, J. L. Tain, C. Weiß, V. Konovalov, C. Pretel, Niko Kivel, D. Villamarin, L. Perrot, T. Martinez, C. Rubbia, S. Marrone, S. Altstadt, P. Vaz, Alberto Ventura, P. M. Milazzo, Aaron Couture, C. Carrapiço, C. Lampoudis, A. Pavlik, C. Domingo-Pardo, G. Vannini, A. Musumarra, Marco T. Pigni, I. Dillmann, D. Karamanis, T. J. Wright, M. C. Vincente, Christoph A. Stephan, S. Isaev, R. C. Haight, C. Paradela, L. Audouin, R. Sarmento, R. Vlastou, E. Berthoumieux, M. Mastromarco, L. Tavora, Massimo Barbagallo, Anton Wallner, E. Dupont, A. J. M. Plompen, James L. Cox, Corrie S. Moreau, Jeri Kroll, C. Lederer, Maria Victoria Lozano, A. Riego, S. Walter, A. Goverdovski, F. Alvarez-Velarde, Gerald Badurek, Roberto Losito, F. Gramegna, F. Belloni, F. Gunsing, A. Poch, Cristian Massimi, Rugard Dressler, K. Wisshak, Mario Weigand, F. Becvar, M. Mirea, A. Tsinganis, H. Leeb, J. Perkowski, L.S. Leong, Vasilis Vlachoudis, Serot, O., Diakaki, M., Audouin, L., Berthoumieux, E., Calviani, M., Colonna, N., Dupont, E., Duran, I., Gunsing, F., Leal-Cidoncha, E., Le Naour, C., Leong, L.S., Mastromarco, M., Paradela, C., Tarrio, D., Tassan-Got, L., Aerts, G., Altstadt, S., Alvarez, H., Alvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Badurek, G., Barbagallo, M., Baumann, P., Becares, V., Becvar, F., Belloni, F., Berthier, B., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calvino, F., Cano-Ott, D., Capote, R., Carrapiço, C., Cennini, P., Cerutti, F., Chiaveri, E., Chin, M., Cortes, G., Cortes-Giraldo, M.A., Cosentino, L., Couture, A., Cox, J., David, S., Dillmann, I., Domingo-Pardo, C., Dressler, R., Dridi, W., Eleftheriadis, C., Embid-Segura, M., Ferrant, L., Ferrari, A., Finocchiaro, P., Fraval, K., Fujii, K., Furman, W., Ganesan, S., Garcia, A.R., Giubrone, G., Gomez-Hornillos, M.B., Goncalves, I.F., Gonzalez-Romero, E., Goverdovski, A., Gramegna, F., Griesmayer, E., Guerrero, C., Gurusamy, P., Haight, R., Heil, M., Heinitz, S., Igashira, M., Isaev, S., Jenkins, D.G., Jericha, E., Kadi, Y., Kaeppeler, F., Karadimos, D., Karamanis, D., Kerveno, M., Ketlerov, V., Kivel, N., Kokkoris, M., Konovalov, V., Krticka, M., Kroll, J., Lampoudis, C., Langer, C., Lederer, C., Leeb, H., Lo Meo, S., Losito, R., Lozano, M., Manousos, A., Marganiec, J., Martinez, T., Marrone, S., Massimi, C., Mastinu, P., Mendoza, E., Mengoni, A., Milazzo, P.M., Mingrone, F., Mirea, M., Mondelaers, W., Moreau, C., Mosconi, M., Musumarra, A., O’Brien, S., Pancin, J., Patronis, N., Pavlik, A., Pavlopoulos, P., Perkowski, J., Perrot, L., Pigni, M.T., Plag, R., Plompen, A., Plukis, L., Poch, A., Pretel, C., Praena, J., Quesada, J., Rauscher, T., Reifarth, R., Riego, A., Roman, F., Rudolf, G., Rubbia, C., Rullhusen, P., Salgado, J., Santos, C., Sarchiapone, L., Sarmento, R., Saxena, A., Schillebeeckx, P., Schmidt, S., Schumann, D., Stephan, C., Tagliente, G., Tain, J.L., Tavora, L., Terlizzi, R., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Versaci, R., Vermeulen, M.J., Villamarin, D., Vincente, M.C., Vlachoudis, V., Vlastou, R., Voss, F., Wallner, A., Walter, S., Ware, T., Weigand, M., Weiß, C., Wiesher, M., Wisshak, K., Wright, T., Zugec, P., Universitat Politècnica de Catalunya. Departament de Física, and Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group
Subjects: Nuclear reaction, Fission, QC1-999, Nuclear Theory, Nuclear physics, Mechanical engineering, U238, neutron fission, 7. Clean energy, 01 natural sciences, Fissió nuclear, ANGULAR-DISTRIBUTION, Subatomär fysik, Cross section (physics), 0103 physical sciences, Subatomic Physics, Neutron, 010306 general physics, Nuclear Experiment, Energies::Energia nuclear [Àrees temàtiques de la UPC], Physics, Large Hadron Collider, 010308 nuclear & particles physics, Nuclear fission, Física nuclear
Abstract: The U-238 fission cross section is an international standard beyond 2 MeV where the fission plateau starts. However, due to its importance in fission reactors, this cross-section should be very accurately known also in the threshold region below 2 MeV. The U-238 fission cross section has been measured relative to the U-235 fission cross section at CERN - n_TOF with different detection systems. These datasets have been collected and suitably combined to increase the counting statistics in the threshold region from about 300 keV up to 3 MeV. The results are compared with other experimental data, evaluated libraries, and the IAEA standards.
Published: 2016

8. 237Np(n,f) Cross Section: New Data and Present Status

Author: B. Haas, I. Savvidis, C. Lampoudis, A. Pavlik, C. Domingo-Pardo, G. Cortes, Martin Heil, P. Cennini, S. David, D. Tarrío, D. Cano-Ott, W. Dridi, Roberto Capote, P.A. Assimakopoulos, M. Mosconi, S. O'Brien, G. Tagliente, Marco Calviani, M. Oshima, R. Terlizzi, Corrie S. Moreau, S. Walter, J. Andrzejewski, L. Tavora, Ralf Plag, F. Calviño, H. Leeb, J. Salgado, Isabel Lopes, P. Rullhusen, J. Marganiec, S. Andriamonje, A. Poch, C. Santos, E. Kossionides, E. Chiaveri, K. Wisshak, P. F. Mastinu, A. J. M. Plompen, Christoph A. Stephan, J. Pancin, A. Herrera-Martinez, N. Patronis, A. Ventura, F. Gunsing, D. Trubert, L. Ferrant, Cristian Massimi, Javier Praena, I. Duran, Arnaud Ferrari, G. Aerts, M. Dahlfors, Y. Kadi, R. C. Haight, M. Embid-Segura, P. Vaz, Rene Reifarth, H. Álvarez, S. Lukic, D. Villamarin, Alberto Mengoni, James L. Cox, C. Paradela, M. C. Vicente, C. Eleftheriadis, Thomas Rauscher, Aaron Couture, M. Krtička, S. Isaev, J. M. Quesada, Manuel Lozano, L. Tassan-Got, Carlos Guerrero, U. Abbondanno, J. L. Tain, L. Audouin, B. Berthier, P. E. Koehler, L. Sarchiapone, D. Karadimos, R. Ferreira-Marques, T. Martinez, Heinz Oberhummer, E. Jericha, C. Le Naour, E. González-Romero, P. Pavlopoulos, Michael Wiescher, F. Voss, F. Becvar, W.I. Furman, F. Alvarez-Velarde, R. Vlastou, Marco T. Pigni, Nicola Colonna, Masayuki Igashira, E. Berthoumieux, Gerald Badurek, A. Plukis, Vasilis Vlachoudis, C. A. Papachristodoulou, F. Gramegna, K. Fujii, C. T. Papadopoulos, A. Lindote, C. Rubbia, C. Pretel, F. Käppeler, Isabel S. Gonçalves, S. Marrone, M. Kerveno, F. Neves, P. M. Milazzo, L. Perrot, V. Chepel, G. Rudolf, P. Baumann, G. Vannini, C. Carrapiço, D. Karamanis, I. Dillmann, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, Paradela C., Tassan-Got L., Audouin L., Berthier B., Ferrant L., Isaev S., Naour C. Le, Stephan C., Trubert D., David S., Duran I., Tarrio D., Alvarez H., Abbondanno U., Fujii K., Milazzo P. M., Moreau C., Aerts G., Alvarez-Velarde F., Cano-Ott D., Embid-Segura M., Gonzalez-Romero E., Guerrero C., Martinez T., Villamarin D., Vicente M. C., Andriamonje S., Berthoumieux E., Dridi W., Gunsing F., Pancin J., Perrot L., Plukis A., Andrzejewski J., Marganiec J., Assimakopoulos P., Karadimos D., Karamanis D., Papachristodoulou C., Patronis N., Badurek G., Jericha E., Leeb H., Oberhummer H., Pigni M. T., Baumann P., Kerveno M., Lukic S., Rudolf G., Becvar F., Krticka M., Calvino F., Cortes G., Poch A., Pretel C., Calviani M., Gramegna F., Mastinu P., Praena J., Capote R., Carrapico C., Cennini P., Chiaveri E., Dahlfors M., Ferrari A., Herrera-Martinez A., Kadi Y., Sarchiapone L., Vlachoudis V., Chepel V., Ferreira-Marques R., Lindote A., Lopes I., Neves F., Colonna N., Tagliente G., Terlizzi R., Couture A., Cox J., Marrone S., Obrien S., Wiescher M., Dillmann I., Heil M., Kappeler F., Mosconi M., Voss F., Walter S., Wisshak K., Domingo-Pardo C., Plag R., Plompen A., Tain J. L., Eleftheriadis C., Savvidis I., Furman W., Goncalves I., Salgado J., Santos C., Tavora L., Vaz P., Haas B., Haight R., Reifarth R., Igashira M., Koehler P., Kossionides E., Lampoudis C., Lozano M., Quesada J., Massimi C., Vannini G., Mengoni A., Oshima M., Papadopoulos C., Pavlik A., Pavlopoulos P., Vlastou R., Rauscher T., Rubbia C., Rullhusen P., Ventura A., Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Aval du cycle et Energie Nucléaire (ACEN), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), nTOF, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Energies::Energia nuclear [Àrees temàtiques de la UPC], Physics, neutron fission cross section, Np-237, Fission, Nuclear data, General Physics and Astronomy, Nuclear energy, 020206 networking & telecommunications, Energies::Energia nuclear::Reactors nuclears de fissió [Àrees temàtiques de la UPC], 02 engineering and technology, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear physics, TIME-OF-FLIGHT, Cross section (physics), Fusion reactors, Reactors nuclears, n TOF experiment, 0202 electrical engineering, electronic engineering, information engineering, Energia nuclear, 020201 artificial intelligence & image processing, Energy (signal processing), Neutron-induced ssion reactions
Abstract: In this document, we present the nal result obtained at the n TOF experiment for the neutron- induced ssion cross section of the 237Np, from the ssion threshold up to 1 GeV. The method applied to get this result is brie y discussed. n TOF data are compared to the last experimental measurements using other TOF facilities or the surrogate method, reported experiments performed with monoenergetic sources and the FISCAL systematic, including a discussion about the existing discrepancies.
Published: 2011

9. High-energy Neutron-induced Fission Cross Sections of Natural Lead and Bismuth-209

Author: D. Tarrio, L. Tassan-Got, L. Audouin, B. Berthier, L. Ferrant, S. Isaev, C. Le Naour, C. Stephan, D. Trubert, S. David, I. Duran, C. Paradela, H. Alvarez, U. Abbondanno, K. Fujii, P. M. Milazzo, C. Moreau, G. Aerts, F. Alvarez-Velarde, D. Cano-Ott, M. Embid-Segura, E. Gonzalez-Romero, C. Guerrero, T. Martinez, D. Villamarin, M. C. Vicente, S. Andriamonje, E. Berthoumieux, W. Dridi, F. Gunsig, J. Pancin, L. Perrot, A. Plukis, J. Andrzejewski, J. Marganiec, P. Assimakopoulos, D. Karadimos, D. Karamanis, C. Papachristodoulou, N. Patronis, G. Badurek, E. Jericha, H. Leeb, H. Oberhummer, M. T. Pigni, P. Baumann, M. Kerveno, S. Lukic, G. Rudolf, F. Becvar, M. Krticka, F. Calvino, G. Cortes, A. Poch, C. Pretel, M. Calviani, F. Gramegna, P. Mastinu, J. Praena, R. Capote, C. Carrapico, P. Cennini, E. Chiaveri, M. Dahlfors, A. Ferrari, I. Goncalves, A. Herrera-Martinez, Y. Kadi, L. Sarchiapone, V. Vlachoudis, V. Chepel, R. Ferreira-Marques, A. Lindote, I. Lopes, F. Neves, N. Colonna, G. Tagliente, R. Terlizzi, A. Couture, J. Cox, S. Marrone, S. O'brien, M. Wiescher, I. Dillmann, M. Heil, F. Kappeler, M. Mosconi, F. Voss, S. Walter, K. Wisshak, C. Domingo-Pardo, R. Plag, A. Plompen, J. L. Tain, C. Eleftheriadis, I. Savvidis, W. Furman, B. Haas, R. Haight, R. Reifarth, M. Igashira, P. Koehler, E. Kossionides, C. Lampoudis, M. Lozano, J. Quesada, C. Massimi, G. Vannini, A. Mengoni, M. Oshima, C. Papadopoulos, A. Pavlik, P. Pavlopoulos, R. Vlastou, T. Rauscher, C. Rubbia, P. Rullhusen, J. Salgado, C. Santos, L. Tavora, P. Vaz, A. Ventura, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Aval du cycle et Energie Nucléaire (ACEN), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), nTOF, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Tarrno D., Tassan-Got L., Audouin L., Berthier B., Ferrant L., Isaev S., Naour C. Le, Stephan C., Trubert D., David S., Duran I., Paradela C., Alvarez H., Abbondanno U., Fujii K., Milazzo P. M., Moreau C., Aerts G., Alvarez-Velarde F., Cano-Ott D., Embid-Segura M., Gonzalez-Romero E., Guerrero C., Martinez T., Villamarin D., Vicente M. C., Andriamonje S., Berthoumieux E., Dridi W., Gunsig F., Pancin J., Perrot L., Plukis A., Andrzejewski J., Marganiec J., Assimakopoulos P., Karadimos D., Karamanis D., Papachristodoulou C., Patronis N., Badurek G., Jericha E., Leeb H., Oberhummer H., Pigni M. T., Baumann P., Kerveno M., Lukic S., Rudolf G., Becvar F., Krticka M., Calvino F., Cortes G., Poch A., Pretel C., Calviani M., Gramegna F., Mastinu P., Praena J., Capote R., Carrapico C., Cennini P., Chiaveri E., Dahlfors M., Ferrari A., Goncalves I., Herrera-Martinez A., Kadi Y., Sarchiapone L., Vlachoudis V., Chepel V., Ferreira-Marques R., Lindote A., Lopes I., Neves F., Colonna N., Tagliente G., Terlizzi R., Couture A., Cox J., Marrone S., Obrien S., Wiescher M., Dillmann I., Heil M., Kappeler F., Mosconi M., Voss F., Walter S., Wisshak K., Domingo-Pardo C., Plag R., Plompen A., Tain J. L., Eleftheriadis C., Savvidis I., Furman W., Haas B., Haight R., Reifarth R., Igashira M., Koehler P., Kossionides E., Lampoudis C., Lozano M., Quesada J., Massimi C., Vannini G., Mengoni A., Oshima M., Papadopoulos C., Pavlik A., Pavlopoulos P., Vlastou R., Rauscher T., Rubbia C., Rullhusen P., Salgado J., Santos C., Tavora L., Vaz P., and Ventura A.
Subjects: Pb-nat(n, Fission, Nuclear data, Nuclear Theory, General Physics and Astronomy, chemistry.chemical_element, f), Energies::Energia nuclear::Reactors nuclears de fissió [Àrees temàtiques de la UPC], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, Bismuth, Nuclear physics, Nuclear reactors, Reactors nuclears, Neutron, Spallation, Nuclear Experiment, EMERGING NUCLEAR TECHNOLOGIES, Neutron-induced ssion reactions, Energies::Energia nuclear [Àrees temàtiques de la UPC], Physics, Cluster decay, Nuclear energy, Bi-209(n, n TOF facility, TIME-OF-FLIGHT, chemistry, Spallation neutron source, Energia nuclear, Neutron source, PPAC fission detector, Spallation Neutron Source
Abstract: The CERN Neutron Time-Of-Flight (n-TOF) facility is well suited to measure small neutron-induced fission cross sections, as those of subactinides. The cross section ratios of {sup nat}Pb and {sup 209}Bi relative to {sup 235}U and {sup 238}U were measured using PPAC detectors. The fragment coincidence method allows to unambiguously identify the fission events. The present experiment provides the first results for neutron-induced fission up to 1 GeV for {sup nat}Pb and {sup 209}Bi. A good agreement with previous experimental data below 200 MeV is shown. The comparison with proton-induced fission indicates that the limiting regime where neutron-induced and proton-induced fission reach equal cross section is close to 1 GeV.
Published: 2011

10. Feynman-α and Rossi-α formulas with spatial and modal effects

Author: D. Villamarin, Victor Bournos, Juan Peña, José-Luis Muñoz-Cobo, and Carl Berglöf
Subjects: Physics, Stochastic process, Astrophysics::High Energy Astrophysical Phenomena, Hadron, Elementary particle, Fermion, Theoretical physics, symbols.namesake, Nuclear Energy and Engineering, symbols, Feynman diagram, Neutron, Nucleon, Delayed neutron, Mathematical physics
Abstract: Feynman-alpha and Rossi-alpha formulas including multiple alpha-modes are derived for stochastic and continuous neutron sources. The presented formalism is further developed to achieve spatial corr ...
Published: 2011

11. MONSTER: a TOF Spectrometer for beta-delayed Neutron Spectroscopy

Author: C. Domingo, Berta Rubio, Javier Castilla, T. K. Ghosh, Jorge Agramunt, Soumik Bhattacharya, M. D. Jordan, B. Behera, Heikki Penttilä, Susmita Kundu, D. Cano-Ott, Ari Jokinen, G. Mukherjee, A. Algora, J. L. Tain, E. Mendoza, J. Marin, J. K. Meena, A. K. Saxena, T. Martinez, T. K. Rana, D. Villamarin, C. Santos, C. Bhattacharya, F.J. Tera, G. Martinez, Sami Rinta-Antila, Pratap Roy, M.C. Ovejero, Kaushik Banerjee, A. R. García, Carlos Guerrero, and R. Pandey
Subjects: Physics, Nuclear and High Energy Physics, Spectrometer, ta114, Nuclear Theory, Neutron stimulated emission computed tomography, Neutron scattering, Neutron temperature, Neutron time-of-flight scattering, Neutron spectroscopy, Nuclear physics, Neutron cross section, Neutron, Nuclear Experiment
Abstract: β-delayed neutron (DN) data, including emission probabilities, Pn, and energy spectrum, play an important role in our understanding of nuclear structure, nuclear astrophysics and nuclear technologies. A MOdular Neutron time-of-flight SpectromeTER (MONSTER) is being built for the measurement of the neutron energy spectra and branching ratios. The TOF spectrometer will consist of one hundred liquid scintillator cells covering a significant solid angle. The MONSTER design has been optimized by using Monte Carlo (MC) techniques. The response function of the MONSTER cell has been characterized with mono-energetic neutron beams and compared to dedicated MC simulations.
Published: 2014

12. Analysis of the BC501A neutron detector signals using the true pulse shape

Author: T. Martínez, M. Fernández-Ordóñez, D. Cano-Ott, E. González-Romero, Carlos Guerrero, and D. Villamarin
Subjects: Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, business.industry, Detector, Scintillator, Signal, Pulse (physics), Semiconductor detector, Optics, Neutron detection, Neutron, business, Instrumentation, Energy (signal processing)
Abstract: A Digital Pulse Shape Analysis method has been developed and tested for a BC501A liquid scintillator. The method is of general use and is especially suited for measurements in high counting rate environments where particle discrimination is necessary. It consists of a single-parameter fit of the true pulse shape of the detector to the digitized signals and is based on very basic assumptions on the behavior of the detector signal. Thus, it can be extended to other detector types like inorganic scintillators and semiconductor detectors. The energy resolution, the quality of the particle discrimination and the efficiency for reconstructing pile-up events have been investigated with standard neutron and γ-ray sources using an 8 bit and 1 GSample/s digitizer.
Published: 2008

13. Neutron reactions and nuclear cosmo-chronology

Author: I. Goncalves, D. Karamanis, L. Ferrant, Thomas Rauscher, L. Fitzpatrick, D. Karadimos, M. Dahlfors, F. Gramegna, P. Vaz, P. Cennini, M. Rosetti, J. Cox, Rene Reifarth, M. C. Vincente, Alberto Ventura, Aaron Couture, Laurent Tassan-Got, P. M. Milazzo, V. Ketlerov, A. Pavlik, P. Pavlopoulos, Ralf Plag, J. M. Quesada, D. Villamarin, C. Lamboudis, J. L. Tain, G. Vannini, M. Oshima, F. Voss, E. Jericha, L. Sarchiapone, M. Mosconi, J. Andrzejewski, W.I. Furman, R. Gallino, Carlo Rubbia, V. Vlachoudis, Nicola Colonna, M. Embid-Segura, C. T. Papadopoulos, A. Lindote, J. Pancin, E. Griesmayer, C. Stephan, S. O'Brien, V. Konovalov, E. Chiaveri, D. Cano-Ott, K. Fujii, H. Alvarez-Pol, R. Vlastou, C. A. Papachristodoulou, R. Terlizzi, B. Haas, Michael Heil, Manuel Lozano, C. Paradela, A. Carrillo de Albornoz, F. Calviño, H. Leeb, S. Marrone, A. J. M. Plompen, I. Dillman, G. Aerts, S. Lukic, L. Tavora, Carlos Guerrero, C. Eleftheriadis, Masayuki Igashira, S. Isaev, U. Abbondanno, E. Kossionides, M. Kerveno, Heinz Oberhummer, G. Rudolf, Yacine Kadi, I. Lopes, G. Cortes, P. Rullhusen, C. Domingo Pardo, R. C. Haight, H. Frais-Koelbl, A. Herrera-Martinez, Alfredo Ferrari, R. Ferreira-Marques, Alberto Mengoni, C. Pretel, N. Patronis, W. Dridi, S. Bisterzo, K. Wisshak, L. Audouin, Roberto Capote, P.A. Assimakopoulos, Michael Wiescher, E. Berthoumieux, F. Neves, S. Walter, H. Wendler, A. Goverdovski, F. Gunsing, F. Alvarez-Velarde, I. Savvidis, Gerald Badurek, R. Dolfini, P. E. Koehler, I. Duran, V. Chepel, P. Baumann, J. Marganiec, S. Andriamonje, P. F. Mastinu, L. Perrot, F. Käppeler, M. Krtička, C. Moreau, J. Salgado, L. Marques, A. Poch, E. Gonzalez-Romero, A. Plukis, F. Bečvář, S. David, G. Tagliente, Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pole Universitaire Leonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), nTOF, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: stars, Neutron capture, Nuclear and High Energy Physics, Estels -- Estructura, Inelastic scattering, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Nuclear physics, Stellar cross sections, Cross section (physics), 0103 physical sciences, Stars--Structure, Neutron cross section, Neutron, cross-sections, capture, 010303 astronomy & astrophysics, milky-way, isotopes, Physics, Neutrons, Física [Àrees temàtiques de la UPC], Re/Os cosmo-chronometer, 010308 nuclear & particles physics, stellar cross sections, nucleosynthesis, inelastic scattering, Neutron temperature, re/os cosmo-chronometer, age, 13. Climate action, r-process, Atomic physics, s-process, s process, neutron capture
Abstract: The beta-decay of Re-187 (t(1/2) = 42.3 Gyr) represents a suited cosmo-chronometer for the age of the r-process abundances, since the radiogenic part of the daughter isotope (OS)-O-187 is defined by the difference between the solar Os-187 abundance and s-process contribution to Os-187. The latter component can be determined via the s-process systematics based on the stellar neutron capture cross sections of Os-186 and Os-187. The laboratory cross section of Os-187 requires a significant correction for the effect of the low-lying excited state at 9.75 keV, which is strongly populated under stellar conditions. This theoretical correction can be improved by an experimental cross section for inelastic scattering to the 9.75 keV state. High resolution time-of-flight measurements of (n, gamma) cross sections of (OS)-O-186,187,188 from I eV to I MeV at CERN n-TOF facility are reported. The inferred stellar cross sections differ from previously recommended values. In addition, the inelastic scattering cross section has been measured at 30 keV neutron energy via time-of-flight at the Karlsruhe 3.7 MV Van de Graaff. The implications of these results for the Re/Os clock are discussed. (c) 2007 Elsevier B.V. All rights reserved. ispartof: Progress in Particle and Nuclear Physics vol:59 issue:1 pages:165-173 ispartof: location:ITALY, Erice status: published
Published: 2007

14. High accuracy U-235(n,f) data in the resonance energy region

Author: Carlos Guerrero, U. Abbondanno, I. Dillmann, I. Savvidis, M. Kerveno, C. Lederer, H. Leeb, A. Pavlik, L. Ferrant, F. Gramegna, D. Villamarin, Ralf Plag, I. Duran, A. Goverdovski, F. Gunsing, Christoph A. Stephan, F. Alvarez-Velarde, P. Pavlopoulos, C. Le Naour, M. Embid-Segura, S. David, A. Ventura, Cristian Massimi, P. Rullhusen, Gerald Badurek, Marco Calviani, F. Voss, P. M. Milazzo, G. Tagliente, A. Plukis, S. Lukic, A. Couture, G. Cortes, W.I. Furman, C. Rubbia, S. Isaev, C. Eleftheriadis, R. C. Haight, S. Marrone, K. Fujii, C. Paradela, P. Baumann, L. Perrot, K. Wisshak, J. Salgado, Thomas Rauscher, P. Cennini, A. Poch, Roberto Capote, L. Audouin, M. Krtička, F. Calviño, I. F. Gonçalves, D. Karadimos, R. Vlastou, E. Berthoumieux, V. Chepel, W. Dridi, C. Santos, M.C. Vincente, L. Tavora, M. Mosconi, L. Sarchiapone, E. González-Romero, E. Jericha, G. Aerts, R. Ferreira-Marques, T. Martinez, Rene Reifarth, S. Walter, J. L. Tain, P. E. Koehler, F. Becvar, A. Lindote, Diego Tarrio, J. M. Quesada, L. Tassan-Got, J. Marganiec, Nicola Colonna, S. Andriamonje, C. Carrapiço, R. Terlizzi, C. Weiss, V. Ketlerov, Vasilis Vlachoudis, H. Alvarez-Pol, E. Chiaveri, Javier Praena, P. F. Mastinu, Y. Kadi, C. Pretel, G. Rudolf, B. Berthier, Michael Heil, A. J. M. Plompen, Corrie S. Moreau, C. Lampoudis, C. Domingo-Pardo, M. Dahlfors, M. Wiesher, P. Vaz, D. Cano-Ott, Arnaud Ferrari, Alberto Mengoni, J. Andrzejewski, V. Konovalov, J. Cox, Masayuki Igashira, F. Kaeppeler, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Serot, O., Paradela, C., Duran, I., Tassan-Got, L., Audouin, L., Berthier, B., Isaev, S., Le Naour, C., Stephan, C., Tarrío, D., Abbondanno, U., Aerts, G., Álvarez-Pol, H., Álvarez-Velarde, F., Andriamonje, S., Andrzejewski, J., Badurek, G., Baumann, P., Becvar, F., Berthoumieux, E., Calviño, F., Calviani, M., Cano-Ott, D., Capote, R., Carrapiço, C., Cennini, P., Chepel, V., Chiaveri, E., Colonna, N., Cortes, G., Couture, A., Cox, J., Dahlfors, M., David, S., Dillmann, I., Domingo-Pardo, C., Dridi, W., Eleftheriadis, C., Embid-Segura, M., Ferrant, L., Ferrari, A., Ferreira-Marques, R., Fujii, K., Furman, W., Gonçalves, I.F., Gonzalez-Romero, E., Goverdovski, A., Gramegna, F., Guerrero, C., Gunsing, F., Haight, R., Heil, M., Igashira, M., Jericha, E., Kadi, Y., Kaeppeler, F., Karadimos, D., Kerveno, M., Ketlerov, V., Koehler, P., Konovalov, V., Krticka, M., Lampoudis, C., Lederer, C., Leeb, H., Lindote, A., Lukic, S., Marganiec, J., Martinez, T., Marrone, S., Massimi, C., Mastinu, P., Mengoni, A., Milazzo, P.M., Moreau, C., Mosconi, M., Pancin, S, Pavlik, A., Pavlopoulos, P., Perrot, L., Plag, R., Plompen, A., Plukis, A., Poch, A., Pretel, C., Praena, J., Quesada, J., Rauscher, T., Reifarth, R., Rubbia, C., Rudolf, G., Rullhusen, P., Salgado, J., Santos, C., Sarchiapone, L., Savvidis, I., Tagliente, G., Tain, J.L., Tavora, L., Terlizzi, R., Vaz, P., Ventura, A., Villamarin, D., Vincente, M.C., Vlachoudis, V., Vlastou, R., Voss, F., Walter, S., Weiss, C., Wiesher, M., and Wisshak, K.
Subjects: Nuclear reaction, Fission, nTOF, QC1-999, Neutron, 01 natural sciences, Resonance (particle physics), Nuclear physics, Subatomär fysik, Cross section (physics), U235, Ionization, 0103 physical sciences, Subatomic Physics, CERN, ddc:530, 010306 general physics, Physics, Energies::Energia nuclear [Àrees temàtiques de la UPC], Neutrons, Range (particle radiation), Large Hadron Collider, Física [Àrees temàtiques de la UPC], Reaccions nuclears, Cross section, 010308 nuclear & particles physics, Nuclear fission, nuclear technologies, Engineering physics, Física nuclear, Nuclear reactions
Abstract: The $^{235}$U neutron-induced cross section is widely used as reference cross section for measuring other fission cross sections, but in the resonance region it is not considered as an IAEA standard because of the scarce experimental data covering the full region. In this work, we deal with a new analysis of the experimental data obtained with a detection setup based on parallel plate ionization chambers (PPACs) at the CERN n_TOF facility in the range from 1 eV to 10 keV. The relative cross section has been normalised to the IAEA value in the region between 7.8 and 11 eV, which is claimed as well-known. Comparison with the ENDF/B-VII evaluation and the IAEA reference file from 100 eV to 10 keV are provided.
Published: 2015

15. Resonance neutron-capture cross sections of stable magnesium isotopes and their astrophysical implications

Author: MASSIMI, CRISTIAN, VANNINI, GIANNI, P. Koehler, S. Bisterzo, N. Colonna, R. Gallino, F. Gunsing, F. Käppeler, G. Lorusso, A. Mengoni, M. Pignatari, U. Abbondanno, G. Aerts, H. Álvarez, F. Álvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, M. Barbagallo, P. Baumann, F. Bečvář, F. Belloni, M. Bennett, E. Berthoumieux, M. Calviani, F. Calviño, D. Cano Ott, R. Capote, C. Carrapiço, A. Carrillo de Albornoz, P. Cennini, V. Chepel, E. Chiaveri, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillmann, R. Dolfini, C. Domingo Pardo, W. Dridi, I. Duran, C. Eleftheriadis, M. Embid Segura, L. Ferrant, A. Ferrari, R. Ferreira Marques, L. Fitzpatrick, H. Frais Koelbl, K. Fujii, W. Furman, I. Goncalves, E. González Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, B. Haas, R. Haight, M. Heil, A. Herrera Martinez, F. Herwig, R. Hirschi, M. Igashira, S. Isaev, E. Jericha, Y. Kadi, D. Karadimos, D. Karamanis, M. Kerveno, V. Ketlerov, V. Konovalov, S. Kopecky, E. Kossionides, M. Krtička, C. Lampoudis, H. Leeb, C. Lederer, A. Lindote, I. Lopes, R. Losito, M. Lozano, S. Lukic, J. Marganiec, L. Marques, S. Marrone, T. Martínez, P. Mastinu, E. Mendoza, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O’Brien, M. Oshima, J. Pancin, C. Papachristodoulou, C. Papadopoulos, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Plukis, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, G. Rockefeller, M. Rosetti, C. Rubbia, G. Rudolf, J. Salgado, C. Santos, L. Sarchiapone, R. Sarmento, I. Savvidis, C. Stephan, G. Tagliente, J. L. Tain, D. Tarrío, L. Tassan Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, H. Wendler, M. Wiescher, K. Wisshak, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aval du cycle et Energie Nucléaire (ACEN), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Theorical Division (LANL), Los Alamos National Laboratory (LANL), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), C. Massimi, P. Koehler, S. Bisterzo, N. Colonna, R. Gallino, F. Gunsing, F. Käppeler, G. Lorusso, A. Mengoni, M. Pignatari, G. Vannini, U. Abbondanno, G. Aert, H. Álvarez, F. Álvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, G. Badurek, M. Barbagallo, P. Baumann, F. Bečvář, F. Belloni, M. Bennett, E. Berthoumieux, M. Calviani, F. Calviño, D. Cano-Ott, R. Capote, C. Carrapiço, A. Carrillo de Albornoz, P. Cennini, V. Chepel, E. Chiaveri, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillmann, R. Dolfini, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadi, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marque, L. Fitzpatrick, H. Frais-Koelbl, K. Fujii, W. Furman, I. Goncalve, E. González-Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, F. Herwig, R. Hirschi, M. Igashira, S. Isaev, E. Jericha, Y. Kadi, D. Karadimo, D. Karamani, M. Kerveno, V. Ketlerov, V. Konovalov, S. Kopecky, E. Kossionide, M. Krtička, C. Lampoudi, H. Leeb, C. Lederer, A. Lindote, I. Lope, R. Losito, M. Lozano, S. Lukic, J. Marganiec, L. Marque, S. Marrone, T. Martínez, P. Mastinu, E. Mendoza, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O’Brien, M. Oshima, J. Pancin, C. Papachristodoulou, C. Papadopoulo, C. Paradela, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Pluki, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, G. Rockefeller, M. Rosetti, C. Rubbia, G. Rudolf, J. Salgado, C. Santo, L. Sarchiapone, R. Sarmento, I. Savvidi, C. Stephan, G. Tagliente, J. L. Tain, D. Tarrío, L. Tassan-Got, L. Tavora, R. Terlizzi, P. Vaz, A. Ventura, D. Villamarin, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, H. Wendler, M. Wiescher, K. Wisshak, Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and TOF
Subjects: Nuclear and High Energy Physics, STELLAR CROSS SECTION, Astrophysics and Astronomy, Neutrons--Captura, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, Neutrons--Capture, Nuclear physics, 0103 physical sciences, Neutron, Nuclear Physics - Experiment, 010306 general physics, Nuclear Experiment, Isotopes of magnesium, Physics, NUCLEAR ASTROPHYSICS, Energies::Energia nuclear [Àrees temàtiques de la UPC], Large Hadron Collider, Isotope, 010308 nuclear & particles physics, Nuclear energy, NEUTRON INDUCED NUCLEAR REACTION, Neutron spectroscopy, Neutron capture, 13. Climate action, S PROCESS, Energia nuclear, RESONANCE SPECTROSCOPY, Atomic physics, s-process, Shape analysis (digital geometry)
Abstract: We have measured the neutron capture cross sections of the stable magnesium isotopes 24,25,26Mg in the energy range of interest to the s process using the neutron time-of-flight facility n_TOF at CERN. Capture events from a natural metal sample and from samples enriched in 25Mg and 26Mg were recorded using the total energy method based on C6 2H6 detectors. Neutron resonance parameters were extracted by a simultaneous resonance shape analysis of the present capture data and existing transmission data on a natural isotopic sample. Maxwellian-averaged capture cross sections for the three isotopes were calculated up to thermal energies of 100 keV and their impact on s-process analyses was investigated. At 30 keV the new values of the stellar cross section for 24Mg, 25Mg, and 26Mg are 3.8±0.2 mb, 4.1±0.6 mb, and 0.14±0.01 mb, respectively.
Published: 2012

16. Neutron-induced fission cross section measurement of233U,241Am and243Am in the energy range 0.5 MeV ⩽En⩽ 20 MeV at n_TOF at CERN

Author: G. Cortes, J. Pancin, C. Lederer, R. Vlastou, H. Leeb, S. David, L. Perrot, P. Cennini, F. Calvino, Anton Wallner, Corrie S. Moreau, V. Chepel, Roberto Capote, P. Baumann, Y. Kadi, G. Tagliente, P.A. Assimakopoulos, M. Kerveno, C. Eleftheriadis, A. Goverdovski, F. Alvarez-Velarde, H. Frais-Koelbl, Thomas Rauscher, M. Dahlfors, F. Gunsing, Gerald Badurek, R. Dolfini, G. Aerts, M. Mosconi, P. Vaz, G. Vannini, J. Marganiec, S. Andriamonje, Marco Calviani, Cristian Massimi, P. Pavlopoulos, Aaron Couture, J. Salgado, A. J. M. Plompen, F. Belloni, C. Stephan, S. O'Brien, Mario Barbagallo, Carlos Guerrero, A. Poch, Marco T. Pigni, D. Karadimos, I. Dillmann, G. Rudolf, F. Cerutti, D. Cano-Ott, C. Pretel, E. Chiaveri, E. Jericha, L. Marques, I. Lopes, Michael Heil, A. Pavlik, Heinz Oberhummer, C. Santos, P. F. Mastinu, R. Terlizzi, S. Walter, C. Domingo-Pardo, L. Ferrant, K. Wisshak, A. Lindote, James L. Cox, E. González-Romero, L. Fitzpatrick, L. Tavora, K. Fujii, R. C. Haight, Masayuki Igashira, C. Paradela, H. Wendler, L. Audouin, M. Embid-Segura, D. Villamarin, P. E. Koehler, P. Rullhusen, V. Ketlerov, Michael Wiescher, L. Sarchiapone, ntof, F. Bečvář, M. Meaze, Manuel Lozano, Ralf Plag, H. Álvarez, M. Oshima, M. Krtička, J. L. Tain, C Lampoudis, J. Andrzejewski, M. Rosetti, F. Voss, W.I. Furman, C. T. Papadopoulos, E. Kossionides, R. Ferreira-Marques, T. Martinez, I. Duran, C. A. Papachristodoulou, F. Neves, P. M. Milazzo, C. Rubbia, V. Konovalov, Javier Praena, Isabel S. Gonçalves, A. Plukis, S. Marrone, A. Carrillo de Albornoz, F. Käppeler, E. Griesmayer, S. Lukic, Nicola Colonna, A. Herrera-Martinez, N. Patronis, Arnaud Ferrari, Vasilis Vlachoudis, Alberto Mengoni, A. Ventura, F. Gramegna, I. Savvidis, B. Haas, M. C. Vincente, W. Dridi, Rene Reifarth, J. M. Quesada, L. Tassan-Got, S. Isaev, U. Abbondanno, E. Berthoumieux, C. Carrapiço, D. Karamanis, F Belloni, P M Milazzo, M Calviani, N Colonna, P Mastinu, U Abbondanno, G Aert, H Álvarez, F Álvarez-Velarde, S Andriamonje, J Andrzejewski, P Assimakopoulo, L Audouin, G Badurek, M Barbagallo, P Baumann, F Bečvář, E Berthoumieux, F Calviño, F Cerutti, D Cano-Ott, R Capote, C Carrapiço, A Carrillo de Albornoz, P Cennini, V Chepel, E Chiaveri, G Corte, A Couture, J Cox, M Dahlfor, S David, I Dillmann, R Dolfini, C Domingo-Pardo, W Dridi, I Duran, C Eleftheriadi, M Embid-Segura, L Ferrant, A Ferrari, R Ferreira-Marque, L Fitzpatrick, H Frais-Koelbl, K Fujii, W Furman, I Goncalve, E González-Romero, A Goverdovski, F Gramegna, E Griesmayer, C Guerrero, F Gunsing, B Haa, R Haight, M Heil, A Herrera-Martinez, M Igashira, S Isaev, E Jericha, F Käppeler, Y Kadi, D Karadimo, D Karamani, V Ketlerov, M Kerveno, P Koehler, V Konovalov, E Kossionide, M Krtička, C Lampoudi, C Lederer, H Leeb, A Lindote, I Lope, M Lozano, S Lukic, J Marganiec, L Marque, S Marrone, T Martínez, C Massimi, M H Meaze, A Mengoni, C Moreau, M Mosconi, F Neve, H Oberhummer, S O'Brien, M Oshima, J Pancin, C Papachristodoulou, C Papadopoulo, C Paradela, N Patroni, A Pavlik, P Pavlopoulo, L Perrot, M T Pigni, R Plag, A Plompen, A Pluki, A Poch, J Praena, C Pretel, J Quesada, T Rauscher, R Reifarth, M Rosetti, C Rubbia, G Rudolf, P Rullhusen, J Salgado, C Santo, L Sarchiapone, I Savvidi, C Stephan, G Tagliente, J L Tain, L Tassan-Got, L Tavora, R Terlizzi, G Vannini, P Vaz, A Ventura, D Villamarin, M C Vincente, V Vlachoudi, R Vlastou, F Vo, A Wallner, S Walter, H Wendler, M Wiescher, and K Wisshak
Subjects: Fission, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, 01 natural sciences, 7. Clean energy, Nuclear physics, Cross section (physics), 0103 physical sciences, Neutron cross section, Neutron, 010306 general physics, Nuclear Experiment, Mathematical Physics, EMERGING NUCLEAR TECHNOLOGIES, Physics, Large Hadron Collider, 010308 nuclear & particles physics, Neutron radiation, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, NEUTRON INDUCED FISSION, Time of flight, TIME-OF-FLIGHT, Ionization chamber, Physics::Accelerator Physics, Atomic physics
Abstract: Neutron-induced fission cross section measurements of U-233, Am-243 and Am-241 relative to U-235 have been carried out at the neutron time-of-flight facility n_TOF at CERN. A fast ionization chamber has been employed. All samples were located in the same detector; therefore the studied elements and the reference U-235 target are subject to the same neutron beam.
Published: 2012

17. New experimental validation of the pulse height weighting technique for capture cross-section measurements

Author: L. Perrot, J. Pancin, F. Voss, Marco Radici, K. Wisshak, Ch.O. Bacri, V. Chepel, E. Berthomieux, L. Zanini, S. Marrone, P. Baumann, A. Lindote, T. Papaevangelou, M. Vincente-Vincente, Nicola Colonna, C. Tapia, M. Dahlfors, P. Vaz, G. Vannini, Per Carlson, M. Embid-Segura, H. Frais-Koelbl, E. Savvidis, F. Rejmund, H. Wendler, J. Salgado, A. Poch, Y. Giomataris, H. Álvarez, J. L. Tain, Saed Dababneh, L. Tavora, K.G. Ioannides, F. Gramegna, I. Duran, Aaron Couture, D. Cortina, M. Terrani, A. Goverdovski, George Kitis, F. Neves, P. M. Milazzo, A. Herrera-Martinez, Manuel Lozano, B. Berthier, R. Vlastou, F. Gunsing, Gerald Badurek, Ralf Plag, J. Benlliure, Alberto Mengoni, G. Cortes, A. Molina-Coballes, G. Aerts, A. Pavlik, N. Tsangas, Enrico Chiaveri, M. Rosetti, W. Rapp, P. Rullhusen, E. Gonzalez-Romero, R. Dolfini, N. Janeva, C. Domingo-Pardo, C. Eleftheriadis, E. Boscolo-Marchi, C. Paradela, E. Jericha, S. Markov, Roberto Capote, S. Lukic, A. Perez-Parra, Rene Reifarth, P. E. Koehler, P.A. Assimakopoulos, A. Kelic, I. F. Gonçalves, D. Cano-Ott, A. Plukis, P. Pavlopoulos, M.I. Lopes, F. Bečvář, P. Cennini, José M. Martínez-Val, S. David, J. M. Quesada, L. Tassan-Got, Sigfrido Boffi, S. Andriamonje, G. Tagliente, U. Abbondanno, Yacine Kadi, J.C. Soares, José Manuel Perlado, L. Ferrant, D. Karamanis, C. Borcea, C. Coceva, L. Ferreira-Lourenco, R. C. Haight, Heinz Oberhummer, Alfredo Ferrari, R. Ferreira-Marques, C. Stephan, S. O'Brien, E. Griesmayer, P. F. Mastinu, Michael Heil, A. Ventura, H. Beer, R. Terlizzi, E. Kossionides, H. Leeb, V. Ketlerov, D. Villamarin-Fernandez, F. Käppeler, Michael Wiescher, W.I. Furman, Carlo Rubbia, E. Mínguez, Subramanian Raman, A. J. M. Plompen, V. Peskov, V. Vlachoudis, A. Angelopoulos, N. Bustreo, G. Rudolf, P. Calviño, C. Moreau, V. Konovalov, V. Lacoste, C. Pretel, James L. Cox, Thomas Rauscher, A.J.P.L. Policarpo, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), TOF, U.Abbondanno, G.Aert, H.Alvarez, S.Adriamonje, A.Angelopoulo, P.Assimakopoulo, C.Bacri, C.Badurek, P.Bauman, F.Becvar, H.Beer, J.Benlliure, B.Berthier, E.Berthoumieux, S.Boffi, C.Borcea, N.Bustreo, F.Calvino, D.Cano-Ott, R.Capote, P.Carlson, P.Cennini, V.Chepel, E.Chiaveri, N.Colonna, G.Corte, D.Cortina, A.Couture, J.Cox, S.Dababneh, M.Dahlfor, S.David, R.Dolfini, C.Domingo, I.Dura-Escribano, C.Eleftheriadi, M.Embid-Segura, L.Ferrant, A.Ferrari, L.Ferreira-Lourenco, R.Ferreira-Marque, H.Frais-Koelbl, W.Furman, Y.Giomatari, I.Goncalve, E.Gonzales-Romero, A.Goverdovski, F.Gramegna, E.Griiesmayer, F.GGunsing, R.Haight, M.Heil, A.Errera-Martinez, K.Ioannide, N.Janeva, E.Jericha, Y.Kadi, F.Kappeler, D.Karamani, A.Kelic, V.Ketlerov, G.Kiti, P.Koehler, V.Konovalov, E.Kossionide, V.Lacoste, H.Leeb, A.Lindote, I.Lope, M.Lozano, S.Lukic, S.Markov, S.Marrone, J.Martinez-Val, P.Mastinu, A.Mengoni, P.Milazzo, E.Minguez, C.Moreau, F.Neve, H.Oberhummer, S.O’Brien, J.Pancin, C.Paradela, A.Pavlik, P.Pavlopoulo, A.Perez-Parra, J.Perlado, L.Perrot, V.Peskov, R.Plag, A.Plomplen, A.Pluki, A.Poch, A.policarpo, C.Pretel, J.Quesada, M.Radici, W.Rapp, R.Reifarth, F.Rejmund, M.Rosetti, C.Rubbia, G.Rudolf, P.Rullhusen, J.Salgado, E.Savvidi, C.Stephan, G.Tagliente, J.Tain, C.Tapia, L.Tassan-Got, L.Tavora, M.Terrani, N.Tsanga, G.Vannini, P.Vaz, A.Ventura, D.Villamarin-Fernandez, M.Vincente-Vincente, V.Vlachoudi, R.Vlastou, F.Vo, H.Wendler, M.Wiescher, K.Wisshak, and L.Zanini
Subjects: Nuclear and High Energy Physics, TheoryofComputation_COMPUTATIONBYABSTRACTDEVICES, Monte Carlo method, NUCLEAR PHYSICS, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], ComputingMethodologies_ARTIFICIALINTELLIGENCE, 01 natural sciences, monte carlo simulations, Cross section (physics), Optics, 0103 physical sciences, neutron capture cross-sections, 010306 general physics, Instrumentation, Pulse height, Physics, 010308 nuclear & particles physics, business.industry, Liquid scintillation counting, Detector, TheoryofComputation_GENERAL, Experimental validation, NEUTRON CROSS SECTIONS, pulse height weighting technique, c6d6 scintillation detectors, Weighting, Neutron capture, ComputingMethodologies_PATTERNRECOGNITION, business
Abstract: The accuracy of the pulse height weighting technique for the determination of neutron capture cross-sections is investigated. The technique is applied to measurements performed with C6D6 liquid scintillation detectors of two different types using capture samples of various dimensions. The data for well-known (n, gamma) resonances are analyzed using weighting functions obtained from Monte Carlo simulations of the experimental set-up. Several causes of systematic deviation are identified and their effect is quantified. In all the cases measured the reaction yield agrees with the standard value within 2%. (C) 2003 Elsevier B.V. All rights reserved. Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment
Published: 2004

18. Astrophysics at n-TOF facility at CERN

Author: G. Vannini, L. Perrot, Alfredo Ferrari, R. Ferreira-Marques, J. Salgado, A. Poch, P. E. Koehler, I. Goncalves, L. Tavora, Ralf Plag, Thomas Rauscher, M. Embid-Segura, E. Jericha, R. Vlastou, I. Duran, Sara Bisterzo, M. Kerveno, M. Krtička, F. Calviño, A. Herrera-Martinez, N. Patronis, C. Santos, E. Kossionides, Manuel Lozano, D. Karadimos, C. Pretel, W.I. Furman, V. Chepel, P. Rullhusen, J. Cox, T. Martinez, Javier Praena, F. Bečvář, Rene Reifarth, P. Baumann, I. Dillman, G. Aerts, Masayuki Igashira, Laurent Tassan-Got, A. Lindote, S. David, K. Fujii, Marco Calviani, P. Pavlopoulos, G. Cortes, G. Tagliente, P. Cennini, J. M. Quesada, S. Walter, A. J. M. Plompen, R. Gallino, C. Carrapiço, C Papadopoulos, E. Berthoumieux, Alberto Mengoni, G. Rudolf, I. Lopes, M. Mosconi, E. Gonzalez-Romero, Fabio Belloni, B. Haas, P. M. Milazzo, Michael Heil, F. Alvarez-Velarde, C. Stephan, L. Sarchiapone, Roberto Capote, R. Terlizzi, Gerald Badurek, A. Plukis, F. Neves, W. Dridi, Carlos Guerrero, D. Karamanis, S. Marrone, F. Gramegna, H. Álvarez, Heinz Oberhummer, J. L. Tain, J. Marganiec, S. Andriamonje, I. Savvidis, J. Andrzejewski, Carlo Rubbia, V. Vlachoudis, P. F. Mastinu, M. C. Vincente, C. Papachristodoulou, U. Abbondanno, J. Pancin, E. Chiaveri, D. Cano-Ott, R. C. Haight, M. Dahlfors, L. Audouin, Michael Wiescher, P. Vaz, D. Villamarin, Marco T. Pigni, Alberto Ventura, Aaron Couture, A. Pavlik, C. Domingo-Pardo, C. Eleftheriadis, C. Paradela, S. Lukic, Yacine Kadi, F. Käppeler, F. Voss, Nicola Colonna, H. Leeb, K. Wisshak, H. Wendler, F. Gunsing, Cristian Massimi, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, G Tagliente, U Abbondanno, G Aert, H Alvarez, F Alvarez-Velarde, S Andriamonje, J Andrzejewski, L Audouin, G Badurek, P Baumann, F Bečvář, F Belloni, E Berthoumieux, S Bisterzo, F Calviño, M Calviani, D Cano-Ott, R Capote, C Carrapiço, P Cennini, V Chepel, E Chiaveri, N Colonna, G Corte, A Couture, J Cox, M Dahlfor, S David, I Dillman, C Domingo-Pardo, W Dridi, I Duran, C Eleftheriadi, M Embid-Segura, A Ferrari, R Ferreira-Marque, K Fujii, W Furman, R Gallino, I Goncalve, E Gonzalez-Romero, F Gramegna, C Guerrero, F Gunsing, B Haa, R Haight, M Heil, A Herrera-Martinez, M Igashira, E Jericha, F Käppeler, Y Kadi, D Karadimo, D Karamani, M Kerveno, P Koehler, E Kossionide, M Krtička, H Leeb, A Lindote, I Lope, M Lozano, S Lukic, J Marganiec, S Marrone, T Martinez, C Massimi, P Mastinu, A Mengoni, P M Milazzo, M Mosconi, F Neve, H Oberhummer, J Pancin, C Papachristodoulou, C Papadopoulo, C Paradela, N Patroni, A Pavlik, P Pavlopoulo, L Perrot, M T Pigni, R Plag, A Plompen, A Pluki, A Poch, J Praena, C Pretel, J Quesada, T Rauscher, R Reifarth, C Rubbia, G Rudolf, P Rullhusen, J Salgado, C Santo, L Sarchiapone, I Savvidi, C Stephan, J L Tain, L Tassan-Got, L Tavora, R Terlizzi, G Vannini, P Vaz, A Ventura, D Villamarin, M C Vincente, V Vlachoudi, R Vlastou, F Vo, S Walter, H Wendler, M Wiescher, and K Wisshak
Subjects: s proce, Nuclear reaction, History, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Nuclear physics, Astrophysics, Education, CERN, Neutron cross section, Nuclear astrophysics, Neutron, Spallation, n_TOF, Nuclear Experiment, Physics, Neutrons, Energies::Energia nuclear [Àrees temàtiques de la UPC], Física [Àrees temàtiques de la UPC], nucleosynthesis, Computer Science Applications, Neutron source, Physics::Accelerator Physics, Física nuclear, s-process, Nucleosynthesis, Spallation Neutron Source
Abstract: The neutron time of flight (n_TOF) facility at CERN is a spallation neutron source with white neutron energy spectrum (from thermal to several GeV), covering the full energy range of interest for nuclear astrophysics, in particular for measurements of the neutron capture cross section required in s-process nucleosynthesis. This contribution presents an overview on the astrophysical program carried on at the n_TOF facility, the main results and their implications.
Published: 2010

19. Astrophysics at n-TOF facility

Author: G. Tagliente, U. Abbondanno, G. Aerts, H. Alvarez, F. Alvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, F. Belloni, E. Berthoumieux, F. Calviño, M. Calviani, D. Cano Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillman, C. Domingo Pardo, W. Dridi, I. Duran, C. Eleftheriadis, M. Embid Segura, L. Ferrant, A. Ferrari, R. Ferreira Marques, K. Fujii, W. Furman, I. Goncalves, E. Gonzalez Romero, F. Gramegna, C. Guerrero, F. Gunsing, M. Heil, A. Herrera Martinez, E. Jericha, F. Käppeler, Y. Kadi, D. Karadimos, D. Karamanis, M. Kerveno, E. Kossionides, M. Krtička, C. Lamboudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martinez, P. Mastinu, A. Mengoni, P. M. Milazzo, M. Mosconi, F. Neves, H. Oberhummer, S. O’Brien, J. Pancin, C. Papachristodoulou, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, R. Plag, A. Plukis, A. Poch, J. Praena, C. Pretel, J. Quesada, R. Reifarth, C. Rubbia, G. Rudolf, J. Salgado, C. Santos, L. Sarchiapone, I. Savvidis, C. Stephan, J. L. Tain, L. Tassan Got, L. Tavora, R. Terlizzi, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, M. Wiescher, K. Wisshak, Ricardo Alarcon, Phil Cole, Andres J. Kreiner, Hugo F. Arellano, MASSIMI, CRISTIAN, VANNINI, GIANNI, Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, European Commission (EC), Ricardo Alarcon , Phil Cole , Andres J. Kreiner and Hugo F. Arellano, G. Tagliente, U. Abbondanno, G. Aert, H. Alvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, F. Belloni, E. Berthoumieux, F. Calviño, M. Calviani, D. Cano-Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillman, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadi, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marque, K. Fujii, W. Furman, I. Goncalve, E. Gonzalez-Romero, F. Gramegna, C. Guerrero, F. Gunsing, M. Heil, A. Herrera-Martinez, E. Jericha, F. Käppeler, Y. Kadi, D. Karadimo, D. Karamani, M. Kerveno, E. Kossionide, M. Krtička, C. Lamboudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martinez, C. Massimi, P. Mastinu, A. Mengoni, P. M. Milazzo, M. Mosconi, F. Neve, H. Oberhummer, S. O’Brien, J. Pancin, C. Papachristodoulou, C. Paradela, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, R. Plag, A. Pluki, A. Poch, J. Praena, C. Pretel, J. Quesada, R. Reifarth, C. Rubbia, G. Rudolf, J. Salgado, C. Santo, L. Sarchiapone, I. Savvidi, C. Stephan, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, M. Wiescher, K. Wisshak, Ricardo Alarcon, Phil Cole, Andres J. Kreiner, and Hugo F. Arellano
Subjects: Physics, Neutron cross-section, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Astrophysics, Neutron scattering, Neutron temperature, Nuclear physics, Neutron capture, Elemental Nucleosynthesi, N_TOF, Nuclear astrophysics, Neutron cross section, r-process, Neutron, n_TOF CERN, s-process, Nuclear Experiment, s process
Abstract: Heavy elements with Z ≥ 30 are made by neutron capture reactions during stellar He burning and presumably in supernovae. This contribution deals mainly with the slow neutron capture (s) process which is responsible for about one half of the abundances in the mass region between Fe and Bi. The slow time scale implies that the reaction path of this process involves mostly stable isotopes which can be studied in detail in laboratory experiments. The neutron time of flight (n_TOF) facility at CERN is a neutron spallation source, its white neutron energy spectrum ranges from thermal to several MeV, covering the full energy range of interest for nuclear astrophysics, in particular for measurements of the neutron capture cross section required in s-process nucleosynthesis. This contribution gives an overview on the astrophysical program made at n_TOF facility, the results and the implications will be considered. European Commission (EC) FIKW-CT-2000-00107
Published: 2010

20. Neutron cross-sections for next generation reactors: New data from n_TOF

Author: C. Eleftheriadis, Carlos Guerrero, S. David, L. Tavora, G. Cortes, Alfredo Ferrari, R. Ferreira-Marques, Heinz Oberhummer, G. Tagliente, Yacine Kadi, P. Rullhusen, A. Herrera-Martinez, N. Patronis, L. Perrot, K. Wisshak, D. Villamarin, W.I. Furman, Masayuki Igashira, A. J. M. Plompen, J. Marganiec, S. Andriamonje, V. Chepel, S. Walter, Ralf Plag, S. Lukic, Marco T. Pigni, G. Rudolf, I. Lopes, F. Neves, C. A. Papachristodoulou, P. M. Milazzo, P. Cennini, M. Oshima, H. Wendler, Roberto Capote, E. Kossionides, P. Baumann, P.A. Assimakopoulos, J. Andrzejewski, James L. Cox, J. Salgado, G. Aerts, E. Chiaveri, Carlo Rubbia, P. F. Mastinu, D. Cano-Ott, V. Vlachoudis, M. Mosconi, F. Voss, A. Poch, L. Sarchiapone, I. Duran, F. Becvar, E. Griesmayer, H. Leeb, I. Dillman, C. Stephan, S. O'Brien, A. Carrillo de Albornoz, R. Terlizzi, M. C. Vicente, Marco Calviani, V. Konovalov, F. Käppeler, Nicola Colonna, G. Vannini, Corrie S. Moreau, R. C. Haight, P. E. Koehler, D. Karamanis, E. Jericha, S. Isaev, U. Abbondanno, C. Paradela, F. Gunsing, L. Audouin, E. Gonzalez-Romero, R. Vlastou, Michael Wiescher, A. Plukis, Cristian Massimi, E. Berthoumieux, F. Gramegna, M. Krtička, F. Calviño, T. Martinez, A. Lindote, Rene Reifarth, I. Savvidis, J. M. Quesada, L. Tassan-Got, A. Goverdovski, F. Alvarez-Velarde, Gerald Badurek, R. Dolfini, L. Ferrant, A. Ventura, P. Pavlopoulos, C. Lampoudis, H. Álvarez, A. Pavlik, J. L. Tain, C. Domingo-Pardo, Martin Heil, H. Frais-Koelbl, Manuel Lozano, J. Pancin, B. Haas, M. Dahlfors, P. Vaz, Aaron Couture, C. T. Papadopoulos, W. Dridi, L. Marques, Isabel S. Gonçalves, S. Marrone, M. Kerveno, K. Fujii, Alberto Mengoni, V. Ketlerov, C. Pretel, M. Rosetti, Thomas Rauscher, D. Karadimos, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), TOF, N. Colonna, U. Abbondanno, G. Aerts, H. Álvarez, F. Álvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, F. Belloni, B. Berthier, E. Berthoumieux, M. Calviani, F. Calviño, D. Cano-Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillmann, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadis, M. Embid-Segura, L. Ferrant,†, A. Ferrari, R. Ferreira-Marques, K. Fujii, W. Furman, I. Goncalves, E. González-Romero, A. Goverdovski, F. Gramegna, E Griesmayer, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, E. Jericha, F. Käppeler, Y. Kadi, D. Karadimos, D. Karamanis, V. Ketlerov, M. Kerveno, P. Koehler, V. Konovalov, E. Kossionides, M. Krtička, C. Lampoudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martínez, C. Massimi, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O'Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulos, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Plukis, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, L. Sarchiapone, I. Savvidis, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, M. Wiescher, K. Wisshak, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Fission, Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, Sensitivity and Specificity, Nuclear physics, Data acquisition, Neutron flux, Nuclear Reactors, 0103 physical sciences, Nuclear astrophysics, Neutron, 010306 general physics, Nuclear Experiment, Physics, Neutrons, Radiation, Large Hadron Collider, 010308 nuclear & particles physics, Reproducibility of Results, Equipment Design, Neutron Capture Therapy, NUCLEAR FISSION, Equipment Failure Analysis, 13. Climate action, Nuclear fission, Spallation Neutron Source
Abstract: 7th International Topical Meeting on Industrial Radiation and Radioisotope Measurement Application. Czech Tech univ, Prague, CZECH REPUBLIC. JUN 22-27, 2008, In 2002, an innovative neutron time-of-flight facility started operation at CERN: n_TOF. The main characteristics that make the new facility unique are the high instantaneous neutron flux, high resolution and wide energy range. Combined with state-of-the-art detectors and data acquisition system, these features have allowed to collect high accuracy neutron cross-section data on a variety of isotopes, many of which radioactive, of interest for Nuclear Astrophysics and for applications to advanced reactor technologies. A review of the most important results on capture and fission reactions obtained so far at n_TOF is presented, together with plans for new measurements related to nuclear industry.
Published: 2010

21. n_TOF Experiment: Past, Present And Future

Author: S. Marrone, U. Abbondanno, G. Aerts, H. Álvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, E. Berthoumieux, M. Calviani, F. Calviño, D. Cano-Ott, R. Capote, A. Carnllo de Albornoz, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillmann, R. Dolfini, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadis, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marques, L. Fitzpatrick, H. Frais-Koelbl, K. Fujii, W. Furman, R. Gallino, I. Goncalves, E. Gonzalez-Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, S. Isaev, E. Jericha, Y. Kadi, F. Käppeler, D. Karamanis, D. Karadimos, M. Kerveno, V. Ketlerov, P. Koehler, V. Konovalov, E. Kossionides, M. Krtička, C. Lamboudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, L. Marques, C. Massimi, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O’Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulos, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, M. Pignatari, R. Plag, A. Plompen, A. Plukis, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, L. Sarchiapone, I. Savvidis, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, H. Wendler, M. Wiescher, K. Wisshak, Dugersuren Dashdorj, Undraa Agvaanluvsan, Gary E. Mitchell, Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, European Commission Joint Research Centre European Community (EC), Dugersuren Dashdorj , Undraa Agvaanluvsan and Gary E. Mitchell, S. Marrone, U. Abbondanno, G. Aert, H. Álvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, E. Berthoumieux, M. Calviani, F. Calviño, D. Cano-Ott, R. Capote, A. Carnllo de Albornoz, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillmann, R. Dolfini, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadi, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marque, L. Fitzpatrick, H. Frais-Koelbl, K. Fujii, W. Furman, R. Gallino, I. Goncalve, E. Gonzalez-Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, F. Gunsing, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, S. Isaev, E. Jericha, Y. Kadi, F. Käppeler, D. Karamani, D. Karadimo, M. Kerveno, V. Ketlerov, P. Koehler, V. Konovalov, E. Kossionide, M. Krtička, C. Lamboudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, L. Marque, C. Massimi, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O’Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulo, C. Paradela, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, M. Pignatari, R. Plag, A. Plompen, A. Pluki, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, L. Sarchiapone, I. Savvidi, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, H. Wendler, M. Wiescher, K. Wisshak, Dugersuren Dashdorj, Undraa Agvaanluvsan, and Gary E. Mitchell
Subjects: Physics, Large Hadron Collider, Fission, Physics::Instrumentation and Detectors, Nuclear Theory, Measure (physics), Th/U fuel cycle, nuclear technologie, spallation neutron source, Nuclear physics, Neutron capture and fission cross sections, Neutron capture, Nuclear technology, Upgrade, MINOR ACTINIDES TRANSMUTATIONS, Photon strength function, Data analysis, Physics::Accelerator Physics, Neutron, Nuclear Experiment
Abstract: The neutron Time-of-Flight facility at CERN was built to measure the neutron capture and fission cross sections. A short description of the facility, the detectors and the data analysis techniques will be illustrated. A short review of the preliminary results on the fission cross sections is presented together with the implications in fundamental nuclear physics and in nuclear technologies. Future perspectives both for the experimental campaign and for the upgrade of the facility are discussed. European Commission Joint Research Centre European Community (EC) FIKW-CT-2000-00107
Published: 2009

22. The n_TOF Total Absorption Calorimeter for neutron capture measurements at CERN

Author: F. Gunsing, Cristian Massimi, S. David, G. Tagliente, R. C. Haight, J. Salgado, A. Poch, L. Tavora, A. J. M. Plompen, Rene Reifarth, S. Walter, P. M. Milazzo, L. Audouin, G. Vannini, A. Herrera-Martinez, C. Paradela, S. Lukic, A. Pavlik, G. Rudolf, I. Lopes, Michael Wiescher, F. Käppeler, C. T. Papadopoulos, P. Pavlopoulos, C. Domingo-Pardo, J. Marganiec, S. Andriamonje, P. Rullhusen, P. E. Koehler, D. Villamarin, Ralf Plag, Michael Heil, J. M. Quesada, Marco T. Pigni, I. Savvidis, J. Andrzejewski, N. Patronis, P. Cennini, Carlo Rubbia, B. Haas, P. F. Mastinu, V. Vlachoudis, F. Alvarez-Velarde, F. Gramegna, Iris Dillmann, S. Marrone, G. Cortes, C. Santos, M. Mosconi, C. Carrapiço, C. Stephan, S. O'Brien, Manuel Lozano, F. Bečvář, W. Dridi, R. Terlizzi, E. Mendoza, F. Voss, C. Eleftheriadis, C. Lampoudis, E. Berthoumieux, T. Martinez, Roberto Capote, Yacine Kadi, P.A. Assimakopoulos, H. Álvarez, Nicola Colonna, M. Krtička, F. Neves, E. Jericha, F. Calviño, J. L. Tain, Carlos Guerrero, Alfredo Ferrari, M. Dahlfors, R. Ferreira-Marques, U. Abbondanno, P. Vaz, Heinz Oberhummer, M. Kerveno, Alberto Ventura, Aaron Couture, E. Gonzalez-Romero, W.I. Furman, A. Plukis, Alberto Mengoni, J. Pancin, J. Cox, E. Chiaveri, D. Cano-Ott, Laurent Tassan-Got, A. Lindote, C. A. Papachristodoulou, L. Ferrant, M. C. Vicente, G. Aerts, K. Wisshak, C. Pretel, H. Leeb, K. Fujii, E. Kossionides, Javier Praena, I. Goncalves, Thomas Rauscher, D. Karadimos, L. Sarchiapone, R. Vlastou, Marco Calviani, V. Chepel, Masayuki Igashira, I. Duran, P. Baumann, L. Perrot, C. Moreau, Gerald Badurek, C. Guerrero, U. Abbondanno, G. Aert, H. Alvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, G. Badurek, P. Baumann, F. Becvar, E. Berthoumieux, F. Calvino, M. Calviani, D. Cano-Ott, R. Capote, C. Carrapico, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillmann, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadi, L. Ferrant, A. Ferrari, R. Ferreira-Marque, K. Fujii, W. Furman, I. Goncalve, E. Gonzalez-Romero, F. Gramegna, F. Gunsing, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, E. Jericha, F. Kappeler, Y. Kadi, D. Karadimo, M. Kerveno, P. Koehler, E. Kossionide, M. Krticka, C. Lampoudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martinez, C. Massimi, P. Mastinu, E. Mendoza, A. Mengoni, P.M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O'Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulo, C. Paradela, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, M.T. Pigni, R. Plag, A. Plompen, A. Pluki, A. Poch, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santo, L. Sarchiapone, I. Savvidi, C. Stephan, G. Tagliente, J.L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M.C. Vicente, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, M. Wiescher, K. Wisshak, Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), European Organization for Nuclear Research (CERN), Pôle Universitaire Léonard de Vinci (PôLE UNIVERSITAIRE LéONARD DE VINCI), Pôle Universitaire Léonard de Vinci (PULV), and nTOF
Subjects: Nuclear and High Energy Physics, Nuclear transmutation, Physics::Instrumentation and Detectors, GAMMA RAY CALORIMETER, neutron cross-sections, Total Absorption, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], time-of-flight, 7. Clean energy, 01 natural sciences, Nuclear physics, Stellar nucleosynthesis, Nucleosynthesis, 0103 physical sciences, Neutron, n_TOF, 010306 general physics, Absorption (electromagnetic radiation), total absorption, Nuclear Experiment, Instrumentation, isotopes, cross-section measurements, Physics, Time-of-Flight, detector, 010308 nuclear & particles physics, baf2 detector, transmutation, BaF2 detector, Calorimeter, Time of flight, Neutron capture, stomatognathic diseases, n_tof, beam, of-flight facility, NEUTRON CAPTURE, neutron capture, Neutron cross-sections
Abstract: The n_TOF Collaboration has built and commissioned a high-performance detector for (n, gamma) measurements called the Total Absorption Calorimeter (TAC). The TAC was especially designed for measuring neutron capture cross-sections of low-mass and/or radioactive samples with the accuracy required for nuclear technology and stellar nucleosynthesis. We present a detailed description of the TAC and discuss its overall performance in terms of energy and time resolution, background discrimination, detection efficiency and neutron sensitivity. (C) 2009 Elsevier B.V. All rights reserved. Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment
Published: 2009

23. Measurement and analysis of theAm243neutron capture cross section at the n_TOF facility at CERN

Author: N. Colonna, S. David, G. Tagliente, B. Haas, M. Dahlfors, Masayuki Igashira, C. T. Papadopoulos, P. Vaz, W. Dridi, A. Ventura, Rene Reifarth, M. Oshima, J. M. Quesada, L. Tassan-Got, Aaron Couture, K. Wisshak, I. Savvidis, A. Plukis, C. Rubbia, J. Andrzejewski, Marco T. Pigni, J. Salgado, A. Poch, F. Voss, G. Vannini, L. Tavora, Isabel S. Gonçalves, S. Marrone, Christoph A. Stephan, J. Marganiec, L. Ferrant, L. Sarchiapone, M. C. Vicente, C. Pretel, G. Aerts, P. Rullhusen, Vasilis Vlachoudis, M. Krtička, D. Karamanis, I. Dillmann, E. Kossionides, J. Balibrea, H. Wendler, L. Fitzpatrick, F. Neves, R. C. Haight, J. L. Tain, R. Ferreira-Marques, T. Martinez, F. Gramegna, Javier Praena, S. Lo Meo, P. M. Milazzo, P. Cennini, Matthias Heil, J. Pancin, D. Villamarin, F. Gunsing, A. Herrera-Martinez, N. Patronis, S. Andriamonje, A. Lindote, C. Lampoudis, C. Paradela, L. Audouin, Isabel Lopes, M. Mosconi, Y. Kadi, H. Frais-Koelbl, M. Kerveno, G. Cortes, A. Goverdovski, Michael Wiescher, S. Isaev, P. E. Koehler, E. Chiaveri, P. F. Mastinu, A. Pavlik, C. Domingo-Pardo, F. Alvarez-Velarde, Cristian Massimi, Gerald Badurek, S. O'Brien, C. Carrapiço, Arnaud Ferrari, L. Perrot, K. Fujii, Marco Calviani, R. Dolfini, Roberto Capote, R. Terlizzi, A. Carrillo de Albornoz, P.A. Assimakopoulos, S. Lukic, P. Pavlopoulos, Fabio Belloni, D. Cano-Ott, R. Vlastou, E. Berthoumieux, F. Calviño, H. Leeb, V. Chepel, C. Santos, G. Rudolf, F. Bečvář, E. Mendoza, E. Jericha, R. Lossito, E. Griesmayer, P. Baumann, I. Duran, Carlos Guerrero, U. Abbondanno, C. Eleftheriadis, Heinz Oberhummer, Thomas Rauscher, D. Karadimos, E. González-Romero, A. Mengoni, V. Ketlerov, W.I. Furman, C. A. Papachristodoulou, S. Walter, Ralf Plag, V. Konovalov, F. Käppeler, L. Marques, Manuel Lozano, Corrie S. Moreau, A. J. M. Plompen, and James L. Cox
Subjects: Physics, Nuclear reaction, Nuclear physics, Nuclear and High Energy Physics, Cross section (physics), Nuclear transmutation, Neutron cross section, Neutron, 7. Clean energy, Resonance (particle physics), Neutron temperature, Calorimeter
Abstract: Background: The design of new nuclear reactors and transmutation devices requires to reduce the present neutron cross section uncertainties of minor actinides. Purpose: Improvement of the 243Am(n,? ) cross section uncertainty. Method: The 243Am(n,? ) cross section has been measured at the n_TOF facility at CERN with a BaF2 total absorption calorimeter, in the energy range between 0.7 eV and 2.5 keV. Results: The 243Am(n,? ) cross section has been successfully measured in the mentioned energy range. The resolved resonance region has been extended from 250 eV up to 400 eV. In the unresolved resonance region our results are compatible with one of the two incompatible capture data sets available below 2.5 keV. The data available in EXFOR and in the literature have been used to perform a simple analysis above 2.5 keV. Conclusions: The results of this measurement contribute to reduce the 243Am(n,? ) cross section uncertainty and suggest that this cross section is underestimated up to 25% in the neutron energy range between 50 eV and a few keV in the present evaluated data libraries.
Published: 2014

24. Neutron-induced fission cross section ofU234measured at the CERN n_TOF facility

Author: C. Domingo-Pardo, J. Salgado, A. Poch, M. Kerveno, G. Cortes, M. Sedysheva, F. Gunsing, M. Oshima, R. C. Haight, J. Andrzejewski, Cristian Massimi, L. Sarchiapone, Carlo Rubbia, Ralf Plag, V. Vlachoudis, Roberto Capote, L. Audouin, K. C. Stamoulis, P. Assimakopoulos, F. Neves, E. Griesmayer, V. Ketlerov, M. Diakaki, I. Duran, Alberto Mengoni, C. Papadopoulos, A. J. M. Plompen, V. Chepel, Michael Wiescher, G. Rudolf, I. Lopes, A. Herrera-Martinez, N. Patronis, P. Baumann, H. Leeb, M. Igashira, G. Vannini, P. E. Koehler, P. M. Milazzo, W. Dridi, B. Haas, Alfredo Ferrari, R. Ferreira-Marques, S. G. Isaev, R. Gallino, E. Gonzalez-Romero, E. Berthoumieux, Michael Heil, W.I. Furman, L. Perrot, C. Eleftheriadis, F. Bečvář, K. Ioannidis, S. Marrone, Rene Reifarth, K. Wisshak, R. Vlastou, A. Plukis, A. Lindote, C. Moreau, M. Rosetti, H. Frais-Koelbl, J. Pancin, E. Chiaveri, D. Cano-Ott, V.Y. Konovalov, Yacine Kadi, H. Wendler, P. Vaz, H. Álvarez, C. Lamboudis, J. L. Tain, I. Goncalves, Thomas Rauscher, Alberto Ventura, Aaron Couture, D. Karadimos, Carlos Guerrero, Heinz Oberhummer, A. Dorochenko, M. Krtička, F. Calviño, G. Aerts, E. Jericha, J. Marganiec, S. Andriamonje, L. Fitzpatrick, P. F. Mastinu, S. O'Brien, M. Embid-Segura, C. Pretel, A. Carrillo de Albornoz, Manuel Lozano, L. Ferrant, D. Villamarin, J. Cox, Laurent Tassan-Got, L. Marques, M. C. Vincente, A. Goverdovski, L. Tavora, F. Alvarez-Velarde, K. Fuji, Gerald Badurek, C. Paradela, R. Dolfini, S. Lukic, P. Rullhusen, U. Abbondanno, I. Savvidis, F. Voss, A. Tsinganis, D. Kolokolov, Nicola Colonna, P. Pavlopoulos, S. David, G. Tagliente, P. Cennini, J. M. Quesada, D. Karamanis, M. Mosconi, C. Stephan, R. Terlizzi, F. Gramegna, F. Käppeler, Paraskevi Demetriou, and A. Pavlik
Subjects: Physics, Nuclear and High Energy Physics, Large Hadron Collider, 010308 nuclear & particles physics, Fission, Detector, Flux, 01 natural sciences, 7. Clean energy, Nuclear physics, Cross section (physics), 0103 physical sciences, Ionization chamber, Neutron, Nuclear Experiment, 010306 general physics, High energy resolution
Abstract: The neutron-induced fission cross section of U234 has been measured at the CERN n-TOF facility relative to the standard fission cross section of U235 from 20 keV to 1.4 MeV and of U238 from 1.4 to 200 MeV. A fast ionization chamber (FIC) was used as a fission fragment detector with a detection efficiency of no less than 97%. The high instantaneous flux and the low background characterizing the n-TOF facility resulted in wide-energy-range data (0.02 to 200 MeV), with high energy resolution, high statistics, and systematic uncertainties bellow 3%. Previous investigations around the energy of the fission threshold revealed structures attributed to β-vibrational levels, which have been confirmed by the present measurements. Theoretical calculations have been performed, employing the talys code with model parameters tuned to fairly reproduce the experimental data. © 2014 American Physical Society.
Published: 2014

25. Study of 234U(n,f) resonances measured at the CERN n TOF facility

Author: B. Berthier, E. Kossionides, Javier Praena, V. Chepel, B. Haas, J. Marganiec, P. Cennini, S. Andriamonje, G. Vannini, C. Lampoudis, S. David, G. Tagliente, S. Lukic, E. Chiaveri, Corrie S. Moreau, W. Dridi, S. Walter, P. Baumann, A. Pavlik, Ralf Plag, P. F. Mastinu, P. E. Koehler, M. Mosconi, M. Kerveno, A. Ventura, C. Domingo-Pardo, L. Sarchiapone, R. Vlastou, C. Pretel, A. J. M. Plompen, J. Salgado, C. Stephan, S. O'Brien, Rene Reifarth, M. Embid-Segura, G. Aerts, E. Berthoumieux, F. Voss, A. Poch, P. Pavlopoulos, J. M. Quesada, L. Tassan-Got, G. Cortes, G. Rudolf, I. Lopes, I. Dillmann, D. Tarrío, Manuel Lozano, Matthias Heil, M. Oshima, Nicola Colonna, R. Terlizzi, L.S. Leong, Carlos Guerrero, M. C. Vincente, James L. Cox, Marco T. Pigni, Vasilis Vlachoudis, I. Duran, J. Andrzejewski, A. Herrera-Martinez, L. Tavora, Heinz Oberhummer, F. Gramegna, Arnaud Ferrari, Roberto Capote, Masayuki Igashira, D. Cano-Ott, Y. Kadi, A. Plukis, L. Perrot, F. Käppeler, E. Leal-Cidoncha, C. Eleftheriadis, P. Rullhusen, L. Ferrant, W.I. Furman, C. Carrapiço, S. Isaev, Thomas Rauscher, K. Fujii, R. C. Haight, F. Alvarez-Velarde, Marco Calviani, U. Abbondanno, M. Krtička, F. Calviño, Alberto Mengoni, D. Karadimos, M. Dahlfors, C. Paradela, K. Wisshak, R. Ferreira-Marques, T. Martinez, P. Vaz, I. Savvidis, Gerald Badurek, E. González-Romero, L. Audouin, H. Álvarez, Aaron Couture, J. L. Tain, Michael Wiescher, J. Pancin, C. T. Papadopoulos, D. Villamarin, C. Rubbia, Isabel S. Gonçalves, S. Marrone, A. Lindote, H. Leeb, E. Jericha, F. Gunsing, D. Trubert, Cristian Massimi, F. Neves, P. M. Milazzo, C. Santos, F. Bečvář, C. Le Naour, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, and Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions
Subjects: Physics, Nuclear reaction, Neutrons, Energies::Energia nuclear [Àrees temàtiques de la UPC], Nuclear and High Energy Physics, Fission, Large Hadron Collider, Cross section, TOF, Resonance, Nuclear data, Neutron, Nuclear physics, Cross section (physics), Neutron cross section, Nuclear Reactions
Abstract: We present the analysis of the resolved resonance region for the 234U(n,f) cross section data measured at the CERN n TOF facility. The resonance parameters in the energy range from 1 eV to 1500 eV have been obtained with the SAMMY code by using as initial parameters for the fit the resonance parameters of the JENDL-3.3 evaluation. In addition, the statistical analysis has been accomplished, partly with the SAMDIST code, in order to study the level spacing and the Mehta-Dyson correlation.
Published: 2014

26. The measurement of the 206Pbn, gamma cross section and stellar implications

Author: L. Tavora, L. Perrot, I. Savvidis, E. Gonzalez-Romero, P. Rullhusen, A. Plukis, F. Käppeler, R. Ferreira-Marques, L. Ferrant, R. C. Haight, D. Karamanis, I. Dillmann, P. Pavlopoulos, C. Paradela, I. Duran, M. C. Vincente, V. Chepel, Rene Reifarth, J. M. Quesada, L. Tassan-Got, L. Audouin, P. Baumann, B. Haas, Michael Wiescher, J. Andrzejewski, G. Aerts, C. Carrapiço, A. J. M. Plompen, U. Abbondanno, P. E. Koehler, Carlo Rubbia, W. Dridi, W.I. Furman, M. Dahlfors, G. Rudolf, I. Lopes, D. Villamarin, Marco T. Pigni, James L. Cox, F. Bečvář, E. Berthoumieux, P. Vaz, C. A. Papachristodoulou, F. Neves, P. M. Milazzo, Alberto Ventura, Aaron Couture, E. Jericha, S. Walter, S. Lukic, F. Gramegna, Ralf Plag, J. Salgado, A. Poch, J. Marganiec, S. Andriamonje, P. F. Mastinu, L. Sarchiapone, H. Leeb, Masayuki Igashira, J. Pancin, P. Cennini, Carlos Guerrero, F. Gunsing, M. Embid-Segura, G. Cortes, M. Mosconi, R. Vlastou, Heinz Oberhummer, C. Stephan, S. O'Brien, F. Voss, Manuel Lozano, Y. Kadi, Cristian Massimi, R. Terlizzi, M. Krtička, F. Calviño, Marco Calviani, Nicola Colonna, Vasilis Vlachoudis, S. David, G. Tagliente, K. Wisshak, A. Pavlik, Roberto Capote, P.A. Assimakopoulos, C. Domingo-Pardo, G. Vannini, F. Alvarez-Velarde, D. Cano-Ott, Gerald Badurek, A. Lindote, C. T. Papadopoulos, S. Marrone, H. Álvarez, R. Gallino, C. Lamboudis, J. L. Tain, Michael Heil, M. Kerveno, E. Kossionides, C. Eleftheriadis, I. Goncalves, Thomas Rauscher, C. Santos, D. Karadimos, K. Fujii, C. Pretel, Sara Bisterzo, A. Herrera-Martinez, N. Patronis, Arnaud Ferrari, Alberto Mengoni, Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), nTOF, C Domingo-Pardo, U Abbondanno, G Aert, H Álvarez, F Alvarez-Velarde, S Andriamonje, J Andrzejewski, P Assimakopoulo, L Audouin, G Badurek, P Baumann, F Bečvář, E Berthoumieux, S Bisterzo, F Calviño, M Calviani, D Cano-Ott, R Capote, C Carrapiço, P Cennini, V Chepel, N Colonna, G Corte, A Couture, J Cox, M Dahlfor, S David, I Dillmann, W Dridi, I Duran, C Eleftheriadi, M Embid-Segura, L Ferrant, A Ferrari, R Ferreira-Marque, K Fujii, W Furman, R Gallino, I Goncalve, E Gonzalez-Romero, F Gramegna, C Guerrero, F Gunsing, B Haa, R Haight, M Heil, A Herrera-Martinez, M Igashira, E Jericha, Y Kadi, F Käppeler, D Karadimo, D Karamani, M Kerveno, P Koehler, E Kossionide, M Krtička, C Lamboudi, H Leeb, A Lindote, I Lope, M Lozano, S Lukic, J Marganiec, S Marrone, C Massimi, P Mastinu, A Mengoni, P M Milazzo, M Mosconi, F Neve, H Oberhummer, S O'Brien, J Pancin, C Papachristodoulou, C Papadopoulo, C Paradela, N Patroni, A Pavlik, P Pavlopoulo, L Perrot, M T Pigni, R Plag, A Plompen, A Pluki, A Poch, C Pretel, J Quesada, T Rauscher, R Reifarth, C Rubbia, G Rudolf, P Rullhusen, J Salgado, C Santo, L Sarchiapone, I Savvidi, C Stephan, G Tagliente, J L Tain, L Tassan-Got, L Tavora, R Terlizzi, G Vannini, P Vaz, A Ventura, D Villamarin, M C Vincente, V Vlachoudi, R Vlastou, F Vo, S Walter, M Wiescher, K Wisshak, and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, s proce, Nuclear and High Energy Physics, Spectrometer, experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, Nuclear physics, Cross section (physics), Neutron capture, Stellar nucleosynthesis, 13. Climate action, Nucleosynthesis, 0103 physical sciences, Neutron cross section, r-process, CERN n_TOF spectrometer, Alpha decay, 010306 general physics, 010303 astronomy & astrophysics
Abstract: The neutron capture cross section of (206)Pb has been measured at the CERN n_TOF spectrometer using a setup of two C(6)D(6) detectors. In the energy interval from 1 eV to 600 keV the cross section is dominated by resonances, which were analyzed via the R-matrix analysis code SAMMY. In the relevant energy ranges for stellar nucleosynthesis, i. e., at thermal energies of kT = 8 keV and kT = 23 keV, the present Maxwellian average cross section differs by 20% and 9% from the recommended values of Bao et al respectively. From the new cross section the s-abundance of (206)Pb could be reliably determined as 70( 4)%. This result is of importance in order to test and constrain r-process abundance calculations in the actinide region, because the r-process portion of (206)Pb is dominated by alpha-back decays of short-lived transbismuth isotopes.
Published: 2008

27. Status and outlook of the neutron time-of-flight facility n_TOF at CERN

Author: F. Käppeler, C. Lampoudis, L. Marques, A. J. M. Plompen, H. Frais-Koelbl, A. Pavlik, I. Goncalves, F. Voss, E. Kossionides, I. Duran, P. Cennini, P.A. Assimakopoulos, S. Walter, C. T. Papadopoulos, A. Herrera-Martinez, Marco T. Pigni, N. Patronis, W. Furman, R. Vlastou, Thomas Rauscher, G. Vannini, E. Berthoumieux, P.M. Milazzo, P. Baumann, Nicola Colonna, S. Lukic, K. Fujii, M. Oshima, M. Dahlfors, D. Cano-Ott, F. Gunsing, P. Vaz, Carlo Rubbia, D. Karadimos, R. Ferreira-Marques, I. Dillman, Alberto Ventura, V. Ketlerov, I. Savvidis, V. Chepel, T. Martínez, V. Vlachoudis, R. Haight, D. Villamarin, G. Tagliente, C. Stephan, C. Pretel, P. E. Koehler, Cristian Massimi, J. Pancin, L. Sarchiapone, L. Perrot, I. Lopes, J. Cox, S. Marrone, C. A. Papachristodoulou, P. Mastinu, Manuel Lozano, E. Chiaveri, F. Neves, G. Cortes, H. Wendler, L. Ferrant, V.Y. Konovalov, H. Álvarez, M. Rosetti, J. Andrzejewski, G. Rudolf, K. Wisshak, Carlos Guerrero, F. Bečvář, E. González-Romero, R. Reifarth, R. Terlizzi, J. M. Quesada, A. Couture, M.C. Vincente, Heinz Oberhummer, E. Griesmayer, J. Marganiec, R. Capote, L. Tassan-Got, L. Tavora, M. Mosconi, P. Rullhusen, S. David, A. Lindote, L. Audouin, A. Poch, B. Haas, P. Pavlopoulos, C. Eleftheriadis, M. Kerveno, Yacine Kadi, U. Abbondanno, W. Dridi, Alberto Mengoni, R. Plag, Alfredo Ferrari, H. Leeb, S. G. Isaev, A. Carrillo de Albornoz, C. Paradela, A. Plukis, M. Krtička, F. Calviño, E. Jericha, S. Andriamonje, J.L. Tain, M. Heil, F. Gramegna, M. Igashira, M. Wiescher, C. Domingo-Pardo, G. Aerts, S. O'Brien, A. Goverdovski, C. Moreau, F. Alvarez-Velarde, Gerald Badurek, R. Dolfini, D. Karamanis, J. Salgado, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, F. Gunsing, U. Abbondanno, G. Aert, H. Álvarez, F. Álvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, E. Berthoumieux, F. Calviño, D. Cano-Ott, R. Capote, A. Carrillo de Albornoz, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillman, R. Dolfini, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadi, L. Ferrant, A. Ferrari, R. Ferreira-Marque, H. Frais-Koelbl, K. Fujii, W. Furman, I. Goncalve, E. González-Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, S. Isaev, E. Jericha, F. Käppeler, Y. Kadi, D. Karadimo, D. Karamani, M. Kerveno, V. Ketlerov, P. Koehler, V. Konovalov, E. Kossionide, M. Krtička, C. Lampoudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, L. Marque, S. Marrone, T. Martínez, C. Massimi, P. Mastinu, A. Mengoni, P.M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O’Brien, M. Oshima, J. Pancin, C. Papachristodoulou, C. Papadopoulo, C. Paradela, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, M.T. Pigni, R. Plag, A. Plompen, A. Pluki, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, L. Sarchiapone, I. Savvidi, C. Stephan, G. Tagliente, J.L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M.C. Vincente, V. Vlachoudi, R. Vlastou, F. Vo, S. Walter, H. Wendler, M. Wiescher, K. Wisshak, Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pole Universitaire Leonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), nTOF, and Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, SPALLATION, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Nuclear physics, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, NEUTRONS, Neutron time-of-flight scattering, 29.25, 28.20.−v, 24.30.−v, 98.80, Neutron flux, 0103 physical sciences, CERN, Neutron cross section, Neutron detection, Neutron, n_TOF, 010306 general physics, Nuclear Experiment, Instrumentation, Physics, Neutrons, Energies::Energia nuclear [Àrees temàtiques de la UPC], Física [Àrees temàtiques de la UPC], 010308 nuclear & particles physics, Time-of-flight, Neutron temperature, Neutron capture, N_TOF, Neutron source, Física nuclear, TIME OF FLIGHT, Spallation
Abstract: 5 pages, 2 figures.-- PACS nrs.: 29.25; 28.20.−v; 24.30.−v; 98.80.-- ISI Article Identifier: 000248784100221, Printed version published Aug 2007.-- Issue title: The Application of Accelerators in Research and Industry - Proceedings of the Nineteenth International Conference on The Application of Accelerators in Research and Industry (Fort Worth, TX, Aug 20-25, 2006)., The neutron time-of-flight facility n_TOF at CERN, fully operational since 2002, combines a high instantaneous neutron flux with high energy resolution. The wide energy range and the high neutron flux per time-of-flight burst result in a much enhanced signal to background ratio for neutron capture of radioactive isotopes and makes this facility well suited for the measurement of high quality neutron-induced reaction cross-sections., Neutrons are created by spallation reactions induced by a pulsed 20 GeV/c proton beam impinging on a lead target. A 5 cm water slab surrounding the lead target serves as a coolant and at the same time as a moderator of the spallation neutron spectrum, providing a wide energy spectrum from 0.1 eV to about 250 MeV., By the end of 2005, a first phase of data taking has been successfully terminated. Fission and capture experiments have been performed on a variety of isotopes of interest for nuclear astrophysics, advanced nuclear technologies and for basic nuclear physics., The instrumentation developed for this facility consists of parallel plate avalanche counter and fission ionization chamber detectors for the fission experiments and of low mass C6D6 detectors and a 4 pi BaF2 total absorption calorimeter for capture experiments. A new data acquisition system, based on sampling of the detector signals, has been developed to cope with the high count rates and to minimize the effective dead time to only a few tens of nanosecond., A second phase of data taking is planned to start in 2007, after an upgrade of the spallation target. On the longer term, the construction of a flight path at 20 in resulting in an increased neutron flux of about a factor of 100 opens new possibilities.
Published: 2007
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28. Neutron capture cross section measurements for nuclear astrophyisics at CERN n_TOF

Author: P. Cennini, W. Rapp, E. Griesmayer, J. Marganiec, G. Cortes, J. Salgado, V. Chepel, A. Poch, R. C. Haight, J. Andrzejewski, M. Mosconi, Carlo Rubbia, F. Gunsing, S. Andriamonje, C. Lamboudis, J. L. Tain, M. C. Vincente, V. Vlachoudis, A. Pavlik, M. Rosetti, C. Domingo-Pardo, I. Duran, C. Stephan, S. O'Brien, P. Baumann, Alfredo Ferrari, R. Ferreira-Marques, J. Cox, P. F. Mastinu, G. Aerts, Laurent Tassan-Got, J.C. Soares, C. Paradela, Michael Wiescher, H Frais-Kölbl, Marco Pignatari, R. Terlizzi, V. Konovalov, R. Gallino, D. Villamarin, I. Goncalves, M. Dahlfors, Roberto Capote, L. Ferrant, L. Tavora, S. Lukic, L. Perrot, P. Vaz, Alberto Ventura, Aaron Couture, Thomas Rauscher, F. Neves, P. Rullhusen, J. Pancin, S. Isaev, E. Chiaveri, D. Cano-Ott, U. Abbondanno, Rene Reifarth, G. Vannini, Michael Heil, M. Krtička, F. Calviño, T. Papaevangelou, D. Karadimos, P. M. Milazzo, C. Moreau, K. Wisshak, S. David, A.J.P.L. Policarpo, G. Tagliente, P. Pavlopoulos, Saed Dababneh, M. Embid-Segura, Yacine Kadi, J. M. Quesada, E. Jericha, A. Herrera-Martinez, P. E. Koehler, D. Cortina, Manuel Lozano, F. Voss, F. Käppeler, F. Becvar, G. Lorusso, E. Berthoumieux, Alberto Mengoni, B. Haas, E. Gonzalez-Romero, Nicola Colonna, C. Pretel, H. Alvarez-Pol, A. Plukis, V. Ketlerov, F. Gramegna, H. Wendler, Ralf Plag, J. Benlliure, A. Molina-Coballes, H. Leeb, A. J. M. Plompen, G. Rudolf, I. Lopes, W.I. Furman, A. Lindote, M. Kerveno, José M. Martínez-Val, José Manuel Perlado, Heinz Oberhummer, S. Marrone, A. Goverdovski, F. Alvarez-Velarde, Gerald Badurek, R. Dolfini, U. Abbondanno, G. Aert, F. Alvarez-Velarde, H. Alvarez-Pol, S. Andriamonje, J. Andrzejewski, G. Badurek, P. Baumann, F. Becvar, J. Benlliure, E. Berthoumieux, F. Calvino, D. Cano-Ott, R. Capote, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, D. Cortina, A. Couture, J. Cox, S. Dababneh, M. Dahlfor, S. David, R. Dolfini, C. Domingo-Pardo, I. Duran, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marque, H. Frais-Koelbl, W. Furman, I. Goncalve, R. Gallino, E. Gonzalez-Romero, A. Goverdoski, F. Gramegna, E. Griesmayer, F. Gunsing, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, S. Isaev, E. Jericha, F. Kaeppeler, Y. Kadi, D. Karadimo, M. Kerveno, V. Ketlerov, P. Koehler, V. Konovalov, M. Krticka, C. Lamboudi, H. Leeb, A. Lindote, I. Lope, G. Lorusso, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, J. Martinez-Val, P. Mastinu, A. Mengoni, P.M. Milazzo, A. Molina-Coballe, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O'Brien, J. Pancin, T. Papaevangelou, C. Paradela, A. Pavlik, P. Pavlopoulo, J.M. Perlado, L. Perrot, M. Pignatari, R. Plag, A. Plompen, A. Pluki, A. Poch, A. Policarpo, C. Pretel, J. Quesada, W. Rapp, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, J.C. Soare, C. Stephan, G. Tagliente, J.L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudi, F. Vo, H. Wendler, M. Wiescher, K. Wisshak, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), L. Buchmann, M. Comyn, J. Thomson, and nTOF
Subjects: Nuclear and High Energy Physics, Astrofísica nuclear, Neutron cross sections, Proton, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Neutrons -- Seccions, Nuclear physics, Cross section (physics), Neutron flux, 0103 physical sciences, Neutron cross section, Nuclear astrophysics, Spallation, Neutron, 010306 general physics, Nuclear Experiment, Physics, Neutrons, Large Hadron Collider, Física [Àrees temàtiques de la UPC], 010308 nuclear & particles physics, Radioactivity, Physics::Accelerator Physics, Física nuclear
Abstract: A series of neutron capture cross section measurements of interest to nuclear astrophysics have been recently performed at n_TOF, the neutron spallation source operating at CERN. The low repetition frequency of the proton beam driver, the extremely high instantaneous neutron flux, and the low background conditions in the experimental area are optimal for capture cross section measurements on low-mass or radioactive samples. An overview of the measurements performed during the two experimental campaigns in 2002 and 2003 is presented with special emphasis on the measurement of the capture cross sections of the Os isotopes relevant for the cosmochronology based on the Re/Os clock. http://www.sciencedirect.com/science/article/B6TVB-4GFTP27-40/1/e75becb4002b5a2d671901c2aa851543
Published: 2005

29. Measurement of the 151Sm n,gamma 152Sm cross section at n_TOF

Author: Roberto Capote, V. Chepel, S. David, P. Baumann, G. Vannini, G. Tagliente, Enrico Chiaveri, M. Rosetti, W. Rapp, M. Krtička, F. Calviño, S. Lukic, Corrie S. Moreau, L. Perrot, P. Pavlopoulos, L. Tavora, José M. Martínez-Val, J. Salgado, A. Poch, Saed Dababneh, F. Gramegna, R. Flag, José Manuel Perlado, P. Rullhusen, G. Aerts, R. Gallino, V. Ketlerov, A. Lindote, Heinz Oberhummer, L. Ferrant, J. Marganiec, S. Andriamonje, C. Pretel, P. Cennini, E. Gonzalez-Romero, A. Goverdovski, Michael Heil, J. Andrzejewski, F. Neves, P. M. Milazzo, J. Benlliure, A. J. M. Plompen, P. F. Mastinu, S. Isaev, M. Embid-Segura, Gerald Badurek, R. C. Haight, R. Dolfini, M. Mosconi, Marco Pignatari, U. Abbondanno, G. Rudolf, I. Lopes, E. Jericha, F. Voss, C. Stephan, S. O'Brien, C. Paradela, W.I. Furman, D. Villamarin, A. Herrera-Martinez, Thomas Rauscher, D. Cortina, Manuel Lozano, F. Alvarez-Velarde, Arnaud Ferrari, Nicola Colonna, R. Terlizzi, James L. Cox, V. Konovalov, Vasilis Vlachoudis, H. Alvarez-Pol, Michael Wiescher, E. Berthoumieux, D. Karadimos, P. E. Koehler, Rene Reifarth, Alberto Mengoni, Daniel Cano-Ott, A.J.P.L. Policarpo, Subramanian Raman, A. Molina-Coballes, A. Plukis, J. M. Quesada, L. Tassan-Got, T. Papaevangelou, B. Haas, J.C. Scares, I. Duran, A. Ventura, Y. Kadi, H. Frais-Koelbl, R. Ferreira-Marques, E. Griesmayer, C. Rubbia, Isabel S. Gonçalves, S. Marrone, M.C. Vincente, C. Lamboudis, J. L. Tain, M. Kerveno, F. Bečvář, M. Dahlfors, P. Vaz, Aaron Couture, A. Pavlik, C. Domingo-Pardo, J. Pancin, F. Käppeler, F. Gunsing, H. Leeb, K. Wisshak, H. Wendler, G. Cortes, Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), L. Buchmann, M. Comyn, J. Thomson, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, S. Marrone, U. Abbondanno, G. Aert, F. Alvarez-Velarde, H. Alvarez-Pol, S. Andriamonje, J. Andrzejewski, G. Badurek, P. Baumann, F. Becvar, J. Bennliure, E. Berthoumieux, F. Calvino, D. Cano-Ott, R. Capote, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, D. Cortina, A. Couture, J. Cox, S. Dababneh, M. Dahlfor, S. David, R. Dolfini, C. Domingo-Pardo, I. Duran, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marque, H. Frais-Koelbl, W. Furman, I. Goncalve, R. Gallino, E. Gonzalez-Romero, A. Goverdoski, F. Gramegna, E. Griesmayer, F. Gunsing, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, S. Isaev, E. Jericha, F. Kaeppeler, Y. Kadi, D. Karadimo, M. Kerveno, V. Ketlerov, P. Koehler, V. Konovalov, M. Krticka, C. Lamboudi, H. Leeb. A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, J. Martinez-Val, P. Mastinu, A. Mengoni, P.M. Milazzo, A. Molina-Coballe, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O'Brien, J. Pancin, T. Papaevangelou, C. Paradela, A. Pavlik, P. Pavlopoulo, J.M. Perlado, L. Perrot, M. Pignatari, R. Plag, A. Plompen, A. Pluki, A. Poch, A. Policarpo, C. Pretel, J. Quesada, S. Raman, W. Rapp, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, J.C. Soare, C. Stephan, G. Tagliente, J.L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudi, F. Vo, H. Wendler, M. Wiescher, and K. Wisshak
Subjects: Physics, Nuclear reaction, Neutrons, Nuclear and High Energy Physics, Física [Àrees temàtiques de la UPC], Branching fraction, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Giant star, 01 natural sciences, Neutrons--Capture, Nuclear physics, Stars, Nucleosynthesis, 0103 physical sciences, Asymptotic giant branch, Astrophysics::Solar and Stellar Astrophysics, 010306 general physics, s-process, Nuclear Experiment, 010303 astronomy & astrophysics, Dimensionless quantity
Abstract: The 151 Sm(n, γ ) 152 Sm cross section, which is important for the interpretation of the 151 Sm branching as an s -process thermometer, was measured from 1 eV up to 1 MeV at the innovative n_TOF facility at CERN. Based on these data, the Maxwellian-averaged cross section at k T = 30 keV is found to be 3100±160 mb. This value can be used to constrain the thermodynamical conditions in Asymptotic Giant Branch (AGB) stars during He-shell burning.
Published: 2005

30. Measurements of the 90,91,92,94,96 Zr n, gamma cross-sections at n_TOF

Author: G. Cortes, Roberto Capote, P. Cennini, A. J. M. Plompen, G. Rudolf, I. Lopes, C. Pretel, G. Vannini, M. Mosconi, P. Pavlopoulos, A. Pavlik, James L. Cox, C. Stephan, S. O'Brien, C. Domingo-Pardo, S. David, R. Gallino, R. Terlizzi, G. Tagliente, F. Voss, J. Andrzejewski, Michael Heil, F. Käppeler, E. Griesmayer, V. Ketlerov, A. Molina-Coballes, L. Ferrant, L. Tavora, W. Rapp, Rene Reifarth, José M. Martínez-Val, J. Pancin, G. Aerts, J. Salgado, M. C. Vincente, A. Poch, A. Herrera-Martinez, Arnaud Ferrari, Nicola Colonna, P. Rullhusen, Corrie S. Moreau, L. Perrot, Alberto Mengoni, J.C. Soares, I. Duran, José Manuel Perlado, Heinz Oberhummer, Thomas Rauscher, Vasilis Vlachoudis, H. Alvarez-Pol, M. Dahlfors, J. M. Quesada, V. Chepel, L. Tassan-Got, V. Konovalov, Y. Kadi, D. Karadimos, P. Baumann, H. Frais-Koelbl, S. Isaev, U. Abbondanno, D. Cano-Ott, W.I. Furman, A.J.P.L. Policarpo, P. Vaz, Aaron Couture, S. Lukic, G. Lorusso, B. Haas, E. Gonzalez-Romero, E. Berthoumieux, P. E. Koehler, Enrico Chiaveri, M. Rosetti, Ralf Plag, J. Benlliure, F. Gramegna, A. Plukis, C. Lamboudis, J. L. Tain, R. C. Haight, M. Kerveno, C. Paradela, M. Krtička, A. Ventura, Saed Dababneh, Michael Wiescher, J. Marganiec, S. Andriamonje, D. Villamarin, P. F. Mastinu, Marco Pignatari, M. Embid-Segura, D. Cortina, Manuel Lozano, C. Rubbia, Isabel S. Gonçalves, S. Marrone, E. Jericha, K. Wisshak, H. Wendler, F. Gunsing, F. Neves, F. Calviño, H. Leeb, P. M. Milazzo, R. Ferreira-Marques, T. Papaevangelou, F. Bečvář, A. Lindote, A. Goverdovski, F. Alvarez-Velarde, Gerald Badurek, R. Dolfini, L. Buchmann, M. Comyn, J. Thomson, Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), nTOF, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, G. Tagliente, U. Abbondanno, G. Aert, F. Alvarez-Velarde, H. Alvarez-Pol, S. Andriamonje, J. Andrzejewski, G. Badurek, P. Baumann, F. Becvar, J. Benlliure, E. Berthoumieux, F. Calvino, D. Cano-Ott, R. Capote, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, D. Cortina, A. Couture, J. Cox, S. Dababneh, M. Dahlfor, S. David, R. Dolfini, C. Domingo-Pardo, I. Duran, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferrera-Marque, H. Frais-Koelbl, W. Furman, I. Goncalve, R. Gallino, E. Gonzalez-Romero, A. Goverdoski, F. Gramegna, E. Griesmayer, F. Gunsing, B. Haa, R. Haight, M. Heil, A. Herrera-Martinez, S. Isaev, E. Jericha, F. Kaeppeler, Y. Kadi, D. Karadimo, M. Kerveno, V. Ketlerov, P. Koehler, V. Konovalov, M. Krticka, C. Lamboudi, H. Leeb, A. Lindote, I. Lope, G. Lorusso, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, J. Martinez-Val, P. Mastinu, A. Mengoni, P.M. Milazzo, A. Molina-Coballe, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, S. O'Brien, J. Pancin, T. Papaevangelou, C. Paradela, A. Pavlik, P. Pavlopoulo, J.M. Perlado, L. Perrot, M. Pignatari, R. Plag, A. Plompen, A. Pluki, A. Poch, A. Policarpo, C. Pretel, J. Quesada, W. Rapp, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, I.C. Soare, C. Stephan, J.L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M.C. Vincente, V. Vlachoudi, F. Vo, H. Wendler, M. Wiescher, and K. Wisshak
Subjects: Nuclear and High Energy Physics, Neutron cross sections, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Neutron scattering, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, Neutrons -- Seccions, Neutron time-of-flight scattering, Nuclear physics, 0103 physical sciences, Neutron cross section, Neutrons -- Mesurament, Neutron, 010306 general physics, Nuclear Experiment, Physics, Bonner sphere, 010308 nuclear & particles physics, Neutrons--Measurement, Neutron stimulated emission computed tomography, Neutron temperature, Neutron capture, Física::Astronomia i astrofísica [Àrees temàtiques de la UPC], Physics::Accelerator Physics
Abstract: Neutron capture cross sections of the 90,91,92,94,96Zr have been measured over the energy range from 1 eV to 1 MeV at the spallation neutron facility n TOF at CERN in 2003. The innovative features of the neutron beam, in particular the high instantaneous flux, the high energy resolution and low background, together with improvements of the neutron sensitivity of the capture detectors make this facility unique for neutron-induced reaction cross section measurements with much improved accuracy. The preliminary results of the Zr measurements show capture resonance strengths generally smaller than in previous measurements.
Published: 2005

31. The93Zr(n,γ) reaction up to 8 keV neutron energy

Author: L. Perrot, M. Dahlfors, E. Jericha, P. Vaz, Aaron Couture, S. Walter, A. Herrera-Martinez, N. Patronis, Ralf Plag, H. Álvarez, S. David, C. Lamboudis, J. L. Tain, W.I. Furman, Arnaud Ferrari, L. Tavora, C. A. Papachristodoulou, M. Rosetti, G. Tagliente, D. Karamanis, I. Dillmann, Carlos Guerrero, U. Abbondanno, Heinz Oberhummer, K. Wisshak, E. Kossionides, A. Ventura, F. Käppeler, Corrie S. Moreau, C. Eleftheriadis, Javier Praena, M. Kerveno, J. Andrzejewski, G. Vannini, Marco Calviani, B. Haas, V. Chepel, G. Rudolf, P. Rullhusen, A. Plukis, J. Salgado, G. Aerts, A. Poch, C. Santos, D. Karadimos, F. Neves, P. M. Milazzo, P. Baumann, C. Carrapiço, D. Villamarin, F. Gunsing, E. González-Romero, A. Pavlik, A. Mengoni, C. Pretel, W. Dridi, M. Krtička, F. Calviño, Rene Reifarth, Cristian Massimi, F. Bečvář, C. Domingo-Pardo, L. Sarchiapone, R. Ferreira-Marques, T. Martinez, A. J. M. Plompen, J. M. Quesada, F. Voss, P. Cennini, Marco T. Pigni, Matthias Heil, I. Duran, J. Marganiec, S. Andriamonje, L. Tassan-Got, G. Cortes, P. Pavlopoulos, E. Chiaveri, M. Embid-Segura, F. Alvarez-Velarde, H. Leeb, I. Savvidis, M. Mosconi, P. F. Mastinu, Y. Kadi, S. O'Brien, Gerald Badurek, R. C. Haight, D. Cano-Ott, R. Terlizzi, Roberto Capote, C. Paradela, L. Audouin, Nicola Colonna, K. Fujii, Vasilis Vlachoudis, R. Vlastou, E. Berthoumieux, Fabio Belloni, M. C. Vincente, Christoph A. Stephan, S. Lukic, A. Lindote, F. Gramegna, Isabel Lopes, Michael Wiescher, C. T. Papadopoulos, C. Rubbia, Isabel S. Gonçalves, and S. Marrone
Subjects: Physics, Nuclear and High Energy Physics, Radionuclide, Range (particle radiation), Nuclear transmutation, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Resonance, 7. Clean energy, 01 natural sciences, Neutron temperature, Nuclear physics, Time of flight, 13. Climate action, Nucleosynthesis, 0103 physical sciences, Physics::Accelerator Physics, Atomic physics, Nuclear Experiment, s-process, 010303 astronomy & astrophysics
Abstract: The (n,γ) reaction of the radioactive isotope 93Zr has been measured at the n-TOF high-resolution time-of-flight facility at CERN. Resonance parameters have been extracted in the neutron energy range up to 8 keV, yielding capture widths smaller (14%) than reported in an earlier experiment. These results are important for detailed nucleosynthesis calculations and for refined studies of waste transmutation concepts. © 2013 American Physical Society.
Published: 2013

32. Publisher's Note: Measurement of resolved resonances of232Th(n,γ) at the n_TOF facility at CERN [Phys. Rev. C85, 064601 (2012)]

Author: S. Andriamonje, A. Goverdovski, F. Alvarez-Velarde, M. C. Vincente, E. Chiaveri, K. Fujii, Gerald Badurek, P. F. Mastinu, A. Herrera-Martinez, N. Patronis, R. Dolfini, M. Mosconi, Arnaud Ferrari, Isabel Lopes, M. Embid-Segura, S. O'Brien, K. Wisshak, F. Voss, J. Salgado, A. Poch, B. Haas, S. Isaev, R. Terlizzi, G. Vannini, C. Lampoudis, G. Aerts, Manuel Lozano, C. T. Papadopoulos, A. Pavlik, C. Domingo-Pardo, N. Colonna, Vasilis Vlachoudis, F. Gramegna, E. Jericha, L. Tavora, I. Duran, M. Oshima, L. Ferrant, J. Marganiec, A. Lindote, L. Perrot, Masayuki Igashira, W. Dridi, J. Andrzejewski, H. Wendler, F. Bečvář, L. Marques, Corrie S. Moreau, C. Rubbia, P. Rullhusen, A. Plukis, L. Fitzpatrick, G. Cortes, R. Vlastou, C. Stephan, F. Gunsing, E. Berthoumieux, R. C. Haight, V. Chepel, G. Rudolf, Isabel S. Gonçalves, A. Ventura, C. Paradela, D. Villamarin, S. Marrone, M. Krtička, F. Calviño, L. Audouin, S. Lukic, V. Konovalov, Roberto Capote, P.A. Assimakopoulos, C. Pretel, P. Baumann, R. Ferreira-Marques, A. J. M. Plompen, F. Neves, D. Cano-Ott, H. Álvarez, I. Savvidis, P. M. Milazzo, J. L. Tain, Michael Wiescher, F. Käppeler, M. Dahlfors, P. Pavlopoulos, Marco T. Pigni, James L. Cox, H. Leeb, M. Kerveno, Rene Reifarth, P. Vaz, Aaron Couture, J. M. Quesada, L. Tassan-Got, A. Carrillo de Albornoz, E. Kossionides, D. Karamanis, S. Walter, Ralf Plag, Carlos Guerrero, U. Abbondanno, S. David, G. Tagliente, Heinz Oberhummer, W.I. Furman, C. A. Papachristodoulou, I. Dillman, L. Sarchiapone, Matthias Heil, J. Pancin, C. Eleftheriadis, Y. Kadi, Thomas Rauscher, H. Frais-Koelbl, D. Karadimos, P. E. Koehler, E. González-Romero, M. Rosetti, E. Griesmayer, A. Mengoni, V. Ketlerov, and P. Cennini
Subjects: Physics, Nuclear and High Energy Physics, Neutron capture, Large Hadron Collider, Radiative capture, Atomic physics
Published: 2012

33. Measurement of resolved resonances of232Th(n,γ) at the n_TOF facility at CERN

Author: G. Cortes, J. Marganiec, S. Andriamonje, G. Aerts, E. Chiaveri, P. F. Mastinu, D. Cano-Ott, Roberto Capote, L. Sarchiapone, M. C. Vincente, A. Ventura, P.A. Assimakopoulos, S. Lukic, Christoph A. Stephan, F. Gunsing, Marco T. Pigni, H. Álvarez, V. Ketlerov, A. J. M. Plompen, V. Chepel, E. Griesmayer, J. L. Tain, N. Colonna, G. Vannini, P. Cennini, G. Rudolf, I. Dillman, S. Isaev, Carlos Guerrero, C. Pretel, B. Haas, P. Baumann, U. Abbondanno, F. Voss, A. Plukis, James L. Cox, Heinz Oberhummer, Thomas Rauscher, M. Mosconi, L. Ferrant, C. T. Papadopoulos, Matthias Heil, J. Pancin, Vasilis Vlachoudis, D. Karadimos, S. Walter, S. O'Brien, M. Krtička, F. Calviño, I. Savvidis, Masayuki Igashira, Corrie S. Moreau, R. C. Haight, J. Salgado, W. Dridi, Ralf Plag, L. Fitzpatrick, R. Ferreira-Marques, R. Terlizzi, A. Poch, M. Embid-Segura, C. Paradela, E. González-Romero, F. Gramegna, Rene Reifarth, L. Audouin, F. Käppeler, L. Tavora, L. Perrot, D. Villamarin, A. Lindote, I. Duran, C. Rubbia, Y. Kadi, H. Frais-Koelbl, C. Lampoudis, M. Rosetti, A. Pavlik, A. Goverdovski, C. Domingo-Pardo, F. Alvarez-Velarde, J. M. Quesada, L. Tassan-Got, Michael Wiescher, W.I. Furman, P. Rullhusen, R. Vlastou, E. Kossionides, E. Berthoumieux, Manuel Lozano, Gerald Badurek, R. Dolfini, K. Fujii, Isabel S. Gonçalves, C. Eleftheriadis, P. Pavlopoulos, S. Marrone, S. David, M. Oshima, J. Andrzejewski, G. Tagliente, P. E. Koehler, M. Dahlfors, C. A. Papachristodoulou, P. Vaz, M. Kerveno, L. Marques, Aaron Couture, V. Konovalov, Isabel Lopes, A. Herrera-Martinez, N. Patronis, Arnaud Ferrari, Alberto Mengoni, K. Wisshak, H. Wendler, H. Leeb, D. Karamanis, F. Neves, P. M. Milazzo, F. Bečvář, A. Carrillo de Albornoz, and E. Jericha
Subjects: Physics, Nuclear and High Energy Physics, Range (particle radiation), Large Hadron Collider, 010308 nuclear & particles physics, Resonance, 01 natural sciences, 7. Clean energy, Spectral line, Nuclear physics, Neutron capture, Yield (chemistry), 0103 physical sciences, Neutron, Atomic physics, Nuclear Experiment, 010306 general physics, Spectroscopy
Abstract: The yield of the neutron capture reaction 232Th(n,γ) has been measured at the neutron time-of-flight facility n-TOF at CERN in the energy range from 1 eV to 1 MeV. The reduction of the acquired data to the capture yield for resolved resonances from 1 eV to 4 keV is described and compared to a recent evaluated data set. The resonance parameters were used to assign an orbital momentum to each resonance. A missing level estimator was used to extract the s-wave level spacing of D0=17.2±0.9 eV. © 2012 American Physical Society.
Published: 2012

34. Neutron-induced fission cross section of 245Cm: New results from data taken at the time-of-flight facility n_TOF

Author: G. Cortes, Gerald Badurek, P. Cennini, J. Pancin, E. Chiaveri, D. Cano-Ott, C. Eleftheriadis, B. Berthier, Michael Heil, E. Kossionides, J. Salgado, Javier Praena, C. Santos, I. Duran, M. Embid-Segura, S. Walter, Roberto Capote, Yacine Kadi, A. Poch, F. Bečvář, E. Mendoza, M. C. Vincente, J. Marganiec, S. Andriamonje, M. Dahlfors, Manuel Lozano, F. Neves, Ralf Plag, M. Mosconi, V. Ketlerov, P. Vaz, L. Ferrant, Peter Schillebeeckx, Iris Dillmann, D. Villamarin, W. Dridi, P. F. Mastinu, J. Cox, Alberto Ventura, S. Galanopoulos, Aaron Couture, Marco T. Pigni, G. Vannini, C. Lederer, C. Papadopoulos, Laurent Tassan-Got, C. Stephan, C. Lampoudis, Alfredo Ferrari, R. Ferreira-Marques, S. Marrone, A. Pavlik, C. Domingo-Pardo, L. Perrot, M. Kerveno, S. David, L. Sarchiapone, M. Meaze, G. Tagliente, M. Rosetti, R. Terlizzi, E. Gonzalez-Romero, G. Aerts, Carlos Guerrero, U. Abbondanno, F. Calviño, R. C. Haight, H. Leeb, P. E. Koehler, V. Chepel, Heinz Oberhummer, I. Goncalves, S. O'Brien, A. Plukis, P. Assimakopoulos, Mario Barbagallo, I. Savvidis, L. Tavora, Thomas Rauscher, Marco Calviani, L. Audouin, D. Karadimos, Michael Wiescher, H. Álvarez, W.I. Furman, P. Baumann, K. Wisshak, V. Variale, M. Krtička, R. Sarmento, J. L. Tain, A. J. M. Plompen, A. Herrera-Martinez, N. Patronis, P. Rullhusen, G. Rudolf, A. Lindote, T. Martinez, I. Lopes, C. A. Papachristodoulou, R. Vlastou, Alberto Mengoni, B. Haas, C. Carrapiço, Rene Reifarth, M. Igashira, P. Pavlopoulos, F. Gunsing, J. M. Quesada, Cristian Massimi, C. Paradela, S. Lukic, E. Jericha, D. Karamanis, E. Berthoumieux, F. Voss, F. Gramegna, Nicola Colonna, C. Moreau, P. M. Milazzo, J. Andrzejewski, Carlo Rubbia, V. Vlachoudis, V. Konovalov, G. Giubrone, C. Pretel, K. Fujii, Fabio Belloni, F. Käppeler, A. Goverdovski, F. Alvarez-Velarde, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, European Commission (EC), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aval du cycle et Energie Nucléaire (ACEN), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), nTOF, Calviani M., Meaze M. H., Colonna N., Praena J., Abbondanno U., Aerts G., Alvarez H., Alvarez-Velarde F., Andriamonje S., Andrzejewski J., Assimakopoulos P., Audouin L., Badurek G., Barbagallo M., Baumann P., Bečvář F., Belloni F., Berthier B., Berthoumieux E., Calviño F., Cano-Ott D., Capote R., Carrapiço C., Cennini P., Chepel V., Chiaveri E., Cortes G., Couture A., Cox J., Dahlfors M., David S., Dillmann I., Domingo-Pardo C., Dridi W., Duran I., Eleftheriadis C., Embid-Segura M., Ferrant L., Ferrari A., Ferreira-Marques R., Fujii K., Furman W., Galanopoulos S., Giubrone G., Gonçalves I., Gonzalez-Romero E., Goverdovski A., Gramegna F., Guerrero C., Gunsing F., Haas B., Haight R., Heil M., Herrera-Martinez A., Igashira M., Jericha E., Käppeler F., Kadi Y., Karadimos D., Karamanis D., Ketlerov V., Kerveno M., Koehler P., Konovalov V., Kossionides E., Krtička M., Lampoudis C., Lederer C., Leeb H., Lindote A., Lopes I., Lozano M., Lukic S., Marganiec J., Marrone S., Martínez T., Massimi C., Mastinu P., Mendoza E., Mengoni A., Milazzo P. M., Moreau C., Mosconi M., Neves F., Oberhummer H., O’Brien S., Pancin J., Papachristodoulou C., Papadopoulos C., Paradela C., Patronis N., Pavlik A., Pavlopoulos P., Perrot L., Pigni M. T., Plag R., Plompen A., Plukis A., Poch A., Pretel C., Quesada J., Rauscher T., Reifarth R., Rosetti M., Rubbia C., Rudolf G., Rullhusen P., Salgado J., Santos C., Sarchiapone L., Sarmento R., Savvidis I., Schillebeeckx P., Stephan C., Tagliente G., Tain J. L., Tassan-Got L., Tavora L., Terlizzi R., Vannini G., Variale V., Vaz P., Ventura A., Villamarin D., Vincente M. C., Vlachoudis V., Vlastou R., Voss F., Walter S., Wiescher M., Wisshak K., Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Energies::Energia nuclear [Àrees temàtiques de la UPC], Nuclear and High Energy Physics, Range (particle radiation), Isotope, 010308 nuclear & particles physics, Fission, Nuclear Theory, Absolute value, Energies::Energia nuclear::Reactors nuclears de fissió [Àrees temàtiques de la UPC], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, Neutron temperature, NEUTRON INDUCED FISSION, Fissió nuclear, Nuclear physics, Time of flight, Cross section (physics), 0103 physical sciences, Fission cross sections, Neutron, 010306 general physics, Nuclear Experiment, TIME OF FLIGHT
Abstract: The neutron-induced fission cross section of 245Cm was measured at n-TOF in a wide energy range and with high resolution. The energy dependence, measured in a single measurement from 30 meV to 1 MeV neutron energy, has been determined with 5% accuracy relative to the 235U(n,f) cross section. In order to reduce the uncertainty on the absolute value, the data have been normalized at thermal energy to recent measurements performed at ILL and BR1. In the energy range of overlap, the results are in fair agreement with some previous measurements and confirm, on average, the evaluated cross section in the ENDF/B-VII.0 database, although sizable differences are observed for some important resonances below 20 eV. A similar behavior is observed relative to JENDL/AC-2008, a reactor-oriented database for actinides. The new results contribute to the overall improvement of the databases needed for the design of advanced reactor systems and may lead to refinements of fission models for the actinides. Comisión Europea FIKW-CT-2000-00107 249671
Published: 2012

35. Measurement and resonance analysis of the 237Np neutron capture cross section

Author: M. Embid-Segura, Manuel Lozano, L. Perrot, R. Lossito, V. Chepel, Ralf Plag, Rene Reifarth, P. Baumann, I. Duran, P. Cennini, E. Kossionides, W.I. Furman, M. Mosconi, G. Aerts, A. Lindote, C. Stephan, C. A. Papachristodoulou, Javier Praena, P. Pavlopoulos, S. O'Brien, J. M. Quesada, A. Herrera-Martinez, N. Patronis, R. Terlizzi, F. Voss, F. Becvar, C. Eleftheriadis, M. C. Vicente, Alberto Mengoni, A. J. M. Plompen, P. M. Milazzo, A. Carrillo de Albornoz, G. Rudolf, L. Ferrant, M. Igashira, I. Lopes, Yacine Kadi, Nicola Colonna, D. Villamarin, P. E. Koehler, L. Fitzpatrick, J. Salgado, Marco T. Pigni, A. Poch, M. Oshima, J. L. Tain, J. Andrzejewski, Carlos Guerrero, Carlo Rubbia, Alfredo Ferrari, R. Ferreira-Marques, S. Isaev, Heinz Oberhummer, V. Vlachoudis, U. Abbondanno, L. Tavora, V. Konovalov, E. Griesmayer, J. Cox, Laurent Tassan-Got, S. David, G. Cortes, P. Rullhusen, G. Tagliente, C. Massimi, E. Jericha, R. C. Haight, Roberto Capote, V. Ketlerov, C. Carrapiço, P.A. Assimakopoulos, M. Kerveno, F. Neves, L. Audouin, F. Käppeler, G. Vannini, E. Gonzalez-Romero, Michael Wiescher, I. Goncalves, Thomas Rauscher, D. Karamanis, I. Dillmann, C. Moreau, D. Karadimos, Michael Heil, S. Walter, C. T. Papadopoulos, F. Gramegna, A. Plukis, A. Goverdovski, C. Santos, F. Alvarez-Velarde, Gerald Badurek, W. Dridi, R. Dolfini, M. Rosetti, S. Marrone, E. Mendoza, B. Haas, J. Marganiec, S. Andriamonje, R. Vlastou, P. F. Mastinu, E. Berthoumieux, I. Savvidis, M. Calviani, H. Frais-Koelbl, C. Paradela, S. Lukic, L. Marques, M. Krtička, C. Pretel, T. Martinez, K. Fujii, Fabio Belloni, F. Calviño, H. Leeb, L. Sarchiapone, M. Dahlfors, P. Vaz, Alberto Ventura, Aaron Couture, C. Lampoudis, A. Pavlik, C. Domingo-Pardo, F. Gunsing, J. Pancin, E. Chiaveri, D. Cano-Ott, K. Wisshak, H. Wendler, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aval du cycle et Energie Nucléaire (ACEN), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), TOF, Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, European Union (UE), Ministerio de Educación y Ciencia (MEC). España, Guerrero C., Cano-Ott D., Mendoza E., Abbondanno U., Aerts G., Alvarez-Velarde F., Andriamonje S., Andrzejewski J., Assimakopoulos P., Audouin L., Badurek G., Baumann P., Becvar F., Belloni F., Berthoumieux E., Calvino F., Calviani M., Capote R., Carrapico C., Carrillo de Albornoz A., Cennini P., Chepel V., Chiaveri E., Colonna N., Cortes G., Couture A., Cox J., Dahlfors M., David S., Dillmann I., Dolfini R., Domingo-Pardo C., Dridi W., Duran I., Eleftheriadis C., Embid-Segura M., Ferrant L., Ferrari A., Ferreira-Marques R., Fitzpatrick L., Frais-Koelbl H., Fujii K., Furman W., Goncalves I., Gonzalez-Romero E., Goverdovski A., Gramegna F., Griesmayer E., Gunsing F., Haas B., Haight R., Heil M., Herrera-Martinez A., Igashira M., Isaev S., Jericha E., Kaeppeler F., Kadi Y., Karadimos D., Karamanis D., Ketlerov V., Kerveno M., Koehler P., Konovalov V., Kossionides E., Krticka M., Lampoudis C., Leeb H., Lindote A., Lopes I., Lossito R., Lozano M., Lukic S., Marganiec J., Marques L., Marrone S., Martinez T., Massimi C., Mastinu P., Mengoni A., Milazzo P. M., Moreau C., Mosconi M., Neves F., Oberhummer H., O'Brien S., Oshima M., Pancin J., Papachristodoulou C., Papadopoulos C., Paradela C., Patronis N., Pavlik A., Pavlopoulos P., Perrot L., Pigni M. T., Plag R., Plompen A., Plukis A., Poch A., Praena J., Pretel C., Quesada J., Rauscher T., Reifarth R., Rosetti M., Rubbia C., Rudolf G., Rullhusen P., Salgado J., Santos C., Sarchiapone L., Savvidis I., Stephan C., Tagliente G., Tain J. L., Tassan-Got L., Tavora L., Terlizzi R., Vannini G., Vaz P., Ventura A., Villamarin D., Vicente M. C., Vlachoudis V., Vlastou R., Voss F., Walter S., Wendler H., Wiescher M., Wisshak K., Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Nuclear and High Energy Physics, Large Hadron Collider, 010308 nuclear & particles physics, CAPTURE CROSS-SECTION, Detector, Nuclear data, BARIUM-FLORIDE CALORIMETER, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, Resonance (particle physics), Calorimeter, Nuclear physics, Cross section (physics), 0103 physical sciences, Range (statistics), Neutron cross section, Nuclear Physics - Experiment, GAMMA SPECTROSCOPY, 010306 general physics, EMERGING NUCLEAR TECHNOLOGIES
Abstract: The neutron capture cross section of 237Np was measured between 0.7 and 500 eV at the CERN n-TOF facility using the 4π BaF2 Total Absorption Calorimeter. The experimental capture yield was extracted minimizing all the systematic uncertainties and was analyzed together with the most reliable transmission data available using the sammy code. The result is a complete set of individual as well as average resonance parameters [D0=0.56(2) eV, Γγ=40.9(18) meV, 104S0=0.98(6), R ′=9.8(6) fm]. The capture cross section obtained in this work is in overall agreement with the evaluations and the data of Weston and Todd, thus showing sizable differences with respect to previous data from Scherbakov and large discrepancies with data Kobayashi. The results indicate that a new evaluation combining the present capture data with reliable transmission data would allow reaching an accuracy better than 4%, in line with the uncertainty requirements of the nuclear data community for the design and operation of current and future nuclear devices. Unión Europea NTOF-NDXADS IP-EUROTRANS CIEMAT-ENRESA Plan Nacional de Física de Partículas (España) FPA2005-06918-C03-01 Programa Consolider-Ingenio 2010 (España)
Published: 2012

36. 96Zr(n,γ) measurement at the n_TOF facility at CERN

Author: Rene Reifarth, C. T. Papadopoulos, J. Marganiec, J. M. Quesada, S. Andriamonje, C. Rubbia, P. Cennini, L. Tassan-Got, M. C. Vincente, F. Calviño, H. Leeb, E. Chiaveri, Isabel S. Gonçalves, G. Cortes, Pierfrancesco Mastinu, Christoph A. Stephan, K. Wisshak, G. Aerts, S. Marrone, F. Gunsing, F. Alvarez-Velarde, Gerald Badurek, S. Lukic, Corrie S. Moreau, M. Kerveno, Cristian Massimi, A. Mengoni, Roberto Capote, M. Mosconi, M. Krtička, S. David, F. Gramegna, P. Pavlopoulos, Marco Calviani, A. Ventura, E. Jericha, M. Dahlfors, G. Tagliente, R. Ferreira-Marques, T. Martinez, G. Vannini, E. Kossionides, P. Vaz, R. Vlastou, C. Pretel, S. O'Brien, A. Lindote, E. Berthoumieux, E. Gonzalez-Romero, K. Fujii, J. Salgado, A. Poch, B. Haas, H. Álvarez, L. Perrot, C. Lamboudis, J. L. Tain, Aaron Couture, F. Käppeler, A. Plukis, I. Savvidis, A. Herrera-Martinez, N. Patronis, Fabio Belloni, C. Carrapiço, F. Voss, V. Chepel, G. Rudolf, R. Terlizzi, Arnaud Ferrari, J. Pancin, C. Eleftheriadis, A. Pavlik, P. Baumann, Nicola Colonna, C. Santos, W. Dridi, R. C. Haight, C. Domingo-Pardo, F. Bečvář, C. Paradela, L. Tavora, Vasilis Vlachoudis, Y. Kadi, D. Karamanis, I. Dillmann, Martin Heil, L. Audouin, D. Karadimos, Michael Wiescher, J. Andrzejewski, D. Villamarin, L. Sarchiapone, Marco T. Pigni, P. Rullhusen, M. Rosetti, F. Neves, P. M. Milazzo, I. Duran, M. Embid-Segura, Isabel Lopes, Javier Praena, S. Walter, Ralf Plag, D. Cano-Ott, W.I. Furman, A. J. M. Plompen, C. A. Papachristodoulou, Carlos Guerrero, U. Abbondanno, and Heinz Oberhummer
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Large Hadron Collider, 010308 nuclear & particles physics, 0103 physical sciences, Radiative capture, Neutron cross section, Atomic physics, s-process, 010303 astronomy & astrophysics, 01 natural sciences, Spallation Neutron Source
Abstract: The (n,γ) cross section of 96Zr has been investigated at the CERN n-TOF spallation neutron source. High-resolution time-of-flight measurements using an enriched ZrO2 sample allowed us to analyze 15 resonances below 40 keV with improved accuracy. On average, the capture widths were found to be 25% smaller than reported in earlier experiments. If complemented with the contribution by direct radiative capture, the derived Maxwellian averaged cross sections are consistent with activation data at kT=25 keV. The present results confirm the astrophysical implications for the s-process branching at 95Zr. © 2011 American Physical Society.
Published: 2011

37. Measurement of the236U(n,f) cross section from 170 meV to 2 MeV at the CERNn_TOFfacility

Author: J. Marganiec, Rene Reifarth, S. Andriamonje, A. Herrera-Martinez, N. Patronis, Alberto Mengoni, I. Goncalves, M. Igashira, P. Cennini, G. Vannini, J. Salgado, Thomas Rauscher, P. Pavlopoulos, Alfredo Ferrari, R. Ferreira-Marques, A. Poch, M. Oshima, J. M. Quesada, R. Vlastou, D. Karadimos, P. F. Mastinu, J. Andrzejewski, C. Paradela, C. Carrapiço, F. Käppeler, C. Lampoudis, S. Lukic, A. Pavlik, E. Jericha, Fabio Belloni, Carlo Rubbia, E. Kossionides, V. Vlachoudis, W. Dridi, R. C. Haight, C. Domingo-Pardo, Javier Praena, V. Ketlerov, M. Mosconi, H. Frais-Koelbl, C. Pretel, C. Papachristodoulou, S. Marrone, C. Papadopoulos, G. Cortes, V. Konovalov, Carlos Guerrero, I. Duran, D. Tarrío, M. Barbagallo, C. Stephan, M. Krtička, H. Álvarez, F. Calviño, J. L. Tain, L. Marques, L. Audouin, S. David, M. Rosetti, Heinz Oberhummer, Michael Heil, L. Sarchiapone, T. Martinez, M. C. Vicente, P. M. Milazzo, G. Tagliente, M. Kerveno, A. Carrillo de Albornoz, Roberto Capote, L. Perrot, Michael Wiescher, D. Karamanis, I. Dillmann, S. O'Brien, F. Voss, R. Terlizzi, D. Villamarin, E. Gonzalez-Romero, F. Neves, Marco T. Pigni, P. Assimakopoulos, F. Becvar, Marco Calviani, Ralf Plag, A. Plukis, E. Mendoza, M. Diakaki, Nicola Colonna, L. Tavora, J. Cox, C. Eleftheriadis, Laurent Tassan-Got, F. Gramegna, W.I. Furman, Yacine Kadi, M. Dahlfors, A. Lindote, E. Griesmayer, P. Vaz, P. E. Koehler, Alberto Ventura, Aaron Couture, P. Rullhusen, C. Moreau, V. Chepel, J. Pancin, E. Chiaveri, D. Cano-Ott, P. Baumann, S. Isaev, E. Berthoumieux, I. Savvidis, G. Aerts, F. Gunsing, A. Goverdovski, Cristian Massimi, F. Alvarez-Velarde, K. Fuji, Gerald Badurek, R. Dolfini, C. Lederer, K. Wisshak, S. Walter, H. Wendler, H. Leeb, Manuel Lozano, L. Ferrant, R. Sarmento, A. J. M. Plompen, G. Rudolf, I. Lopes, and B. Haas
Subjects: Nuclear reaction, Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Fission, Nuclear Theory, Resonance, Nuclear data, 7. Clean energy, 01 natural sciences, Uranium-236, Nuclear physics, 0103 physical sciences, Neutron cross section, Uranium-235, Neutron, Atomic physics, Nuclear Experiment, 010306 general physics
Abstract: The neutron-induced fission cross section of {sup 236}U was measured at the neutron Time-of-Flight (n-TOF) facility at CERN relative to the standard {sup 235}U(n,f) cross section for neutron energies ranging from above thermal to several MeV. The measurement, covering the full range simultaneously, was performed with a fast ionization chamber, taking advantage of the high resolution of the n-TOF spectrometer. The n-TOF results confirm that the first resonance at 5.45 eV is largely overestimated in some nuclear data libraries. The resonance triplet around 1.2 keV was measured with high resolution and resonance parameters were determined with good accuracy. Resonances at high energy have also been observed and characterized and different values for the cross section are provided for the region between 10 keV and the fission threshold. The present work indicates various shortcomings of the current nuclear data libraries in the subthreshold region and provides the basis for an accurate re-evaluation of the {sup 236}U(n,f) cross section, which is of great relevance for the development of emerging or innovative nuclear reactor technologies.
Published: 2011

38. Neutron capture onZr94: Resonance parameters and Maxwellian-averaged cross sections

Author: Christoph A. Stephan, B. Haas, J. Marganiec, S. Andriamonje, F. Gunsing, G. Aerts, G. Cortes, Cristian Massimi, E. Chiaveri, C. Eleftheriadis, P. F. Mastinu, L. Perrot, R. Gallino, Thomas Rauscher, F. Alvarez-Velarde, C. Carrapiço, D. Karadimos, M. Rosetti, W. Dridi, A. Mengoni, N. Colonna, Roberto Capote, Gerald Badurek, Rene Reifarth, P. Cennini, A. J. M. Plompen, M. Dahlfors, Sara Bisterzo, P. Vaz, M. Embid-Segura, S. Lukic, E. Gonzalez-Romero, J. Salgado, A. Poch, A. Herrera-Martinez, N. Patronis, Aaron Couture, H. Leeb, I. Savvidis, J. M. Quesada, A. Plukis, Arnaud Ferrari, L. Tassan-Got, E. Kossionides, G. Vannini, R. C. Haight, Manuel Lozano, F. Gramegna, Marco Calviani, C. Paradela, James L. Cox, A. Pavlik, C. Domingo-Pardo, M. Mosconi, Martin Heil, K. Wisshak, Javier Praena, V. Chepel, G. Rudolf, C. T. Papadopoulos, A. Lindote, L. Audouin, M. Krtička, F. Calviño, R. Vlastou, F. Neves, P. M. Milazzo, C. Rubbia, Michael Wiescher, P. Baumann, F. Voss, S. O'Brien, E. Berthoumieux, Corrie S. Moreau, R. Ferreira-Marques, T. Martinez, A. Ventura, C. Santos, D. Villamarin, Isabel S. Gonçalves, Vasilis Vlachoudis, I. Duran, S. Marrone, D. Cano-Ott, Marco T. Pigni, R. Terlizzi, M. Kerveno, J. Andrzejewski, F. Bečvář, E. Jericha, S. David, G. Tagliente, P. Pavlopoulos, L. Tavora, Isabel Lopes, H. Álvarez, C. Lamboudis, J. L. Tain, L. Sarchiapone, K. Fujii, P. Rullhusen, Fabio Belloni, C. Pretel, Carlos Guerrero, U. Abbondanno, Heinz Oberhummer, W.I. Furman, C. A. Papachristodoulou, S. Walter, Ralf Plag, F. Käppeler, J. Pancin, D. Karamanis, I. Dillmann, Y. Kadi, and M. C. Vincente
Subjects: Nuclear reaction, Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, 7. Clean energy, 01 natural sciences, Neutron temperature, Nuclear physics, Neutron capture, 0103 physical sciences, Neutron cross section, Neutron source, Isotopes of zirconium, Neutron, Nuclear Experiment, s-process, 010303 astronomy & astrophysics
Abstract: The neutron capture cross sections of the Zr isotopes play an important role in nucleosynthesis studies. The s-process reaction flow between the Fe seed and the heavier isotopes passes through the neutron magic nucleus {sup 90}Zr and through {sup 91,92,93,94}Zr, but only part of the flow extends to {sup 96}Zr because of the branching point at {sup 95}Zr. Apart from their effect on the s-process flow, the comparably small isotopic (n,{gamma}) cross sections make Zr also an interesting structural material for nuclear reactors. The {sup 94}Zr (n,{gamma}) cross section has been measured with high resolution at the spallation neutron source n{sub T}OF at CERN and resonance parameters are reported up to 60 keV neutron energy.
Published: 2011

39. Neutron-induced fission cross section ofnatPb andBi209from threshold to 1 GeV: An improved parametrization

Author: D. Tarrío, A. J. M. Plompen, I. Goncalves, G. Rudolf, I. Lopes, S. David, G. Tagliente, C. Lederer, Thomas Rauscher, D. Karadimos, M. Embid-Segura, Roberto Capote, B. Haas, Manuel Lozano, F. Neves, J. Marganiec, L. Ferrant, S. Andriamonje, D. Karamanis, I. Dillmann, J. Salgado, A. Poch, G. Aerts, V. Ketlerov, Alfredo Ferrari, R. Ferreira-Marques, A. Goverdovski, F. Alvarez-Velarde, C. Papachristodoulou, P. F. Mastinu, F. Gunsing, C. Papadopoulos, S. Isaev, Gerald Badurek, D. Trubert, Cristian Massimi, R. Dolfini, L. Sarchiapone, B. Berthier, F. Gramegna, E. Griesmayer, L. Tavora, Michael Heil, G. Vannini, Ralf Plag, A. Carrillo de Albornoz, E. Kossionides, P. Rullhusen, P. E. Koehler, Javier Praena, D. Villamarin, H. Leeb, Marco T. Pigni, Carlos Guerrero, R. Vlastou, U. Abbondanno, Heinz Oberhummer, M. Rosetti, P. M. Milazzo, I. Duran, E. Gonzalez-Romero, A. Plukis, C. Santos, E. Jericha, J. Cox, W.I. Furman, C. Paradela, H. Frais-Koelbl, S. Lukic, A. Lindote, A. Herrera-Martinez, N. Patronis, Laurent Tassan-Got, F. Bečvář, M. Krtička, F. Calviño, Marco Calviani, E. Mendoza, Roberto Losito, M. Oshima, Alberto Mengoni, C. Moreau, T. Martinez, J. Andrzejewski, F. Voss, M. Igashira, C. Le Naour, Carlo Rubbia, V. Vlachoudis, K. Wisshak, L. Fitzpatrick, E. Berthoumieux, R. Sarmento, S. O'Brien, Nicola Colonna, V. Konovalov, H. Wendler, K. Fujii, Rene Reifarth, R. C. Haight, P. Pavlopoulos, J. M. Quesada, L. Audouin, Fabio Belloni, Michael Wiescher, S. Walter, C. Carrapiço, C. Eleftheriadis, M. Kerveno, I. Savvidis, L. Perrot, Yacine Kadi, P. Assimakopoulos, C. Pretel, V. Chepel, P. Baumann, W. Dridi, S. Marrone, J. L. Tain, J. Pancin, E. Chiaveri, D. Cano-Ott, P. Cennini, M. Mosconi, C. Stephan, M. Dahlfors, R. Terlizzi, P. Vaz, Alberto Ventura, Aaron Couture, C. Lampoudis, A. Pavlik, C. Domingo-Pardo, L. Marques, F. Käppeler, and G. Cortes
Subjects: Physics, Nuclear reaction, Nuclear and High Energy Physics, Isotopes of uranium, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Fission, Nuclear Theory, Threshold energy, 7. Clean energy, 01 natural sciences, Nuclear physics, 0103 physical sciences, Uranium-235, Neutron detection, Neutron source, Neutron, Nuclear Experiment, 010306 general physics
Abstract: Neutron-induced fission cross sections for {sup nat}Pb and {sup 209}Bi were measured with a white-spectrum neutron source at the CERN Neutron Time-of-Flight (n{sub T}OF) facility. The experiment, using neutrons from threshold up to 1 GeV, provides the first results for these nuclei above 200 MeV. The cross sections were measured relative to {sup 235}U and {sup 238}U in a dedicated fission chamber with parallel plate avalanche counter detectors. Results are compared with previous experimental data. Upgraded parametrizations of the cross sections are presented, from threshold energy up to 1 GeV. The proposed new sets of fitting parameters improve former results along the whole energy range.
Published: 2011

40. Au197(n,γ) cross section in the unresolved resonance region

Author: I. Goncalves, M. Embid-Segura, A. J. M. Plompen, Thomas Rauscher, C. Lampoudis, J. Salgado, A. Poch, G. Rudolf, I. Lopes, A. Pavlik, G. Vannini, C. Domingo-Pardo, A. Goverdovski, D. Karadimos, F. Alvarez-Velarde, L. Marques, G. Aerts, W.I. Furman, Manuel Lozano, J. Cox, E. Griesmayer, Laurent Tassan-Got, Gerald Badurek, A. Lindote, L. Tavora, L. Perrot, R. Dolfini, P. Rullhusen, P. E. Koehler, L. Sarchiapone, M. Dahlfors, P. Vaz, F. Käppeler, A. Herrera-Martinez, N. Patronis, Alfredo Ferrari, R. Ferreira-Marques, M. Rosetti, S. David, G. Cortes, Alberto Ventura, Aaron Couture, E. Kossionides, G. Tagliente, Carlos Guerrero, D. Tarrío, L. Ferrant, J. Pancin, Heinz Oberhummer, L. Fitzpatrick, M. Oshima, E. Chiaveri, Marco Calviani, Roberto Capote, D. Cano-Ott, M. Igashira, Javier Praena, P.A. Assimakopoulos, C. Lederer, F. Neves, C. Moreau, V. Chepel, J. Andrzejewski, P. Baumann, C. Santos, Carlo Rubbia, V. Vlachoudis, V. Ketlerov, F. Voss, C. Papachristodoulou, R. Sarmento, R. Vlastou, Ralf Plag, S. Walter, E. Mendoza, E. Jericha, Nicola Colonna, H. Frais-Koelbl, C. Pretel, I. Duran, V. Konovalov, I. Savvidis, Massimo Barbagallo, Anton Wallner, Michael Heil, P. M. Milazzo, C. Paradela, A. Carrillo de Albornoz, S. Lukic, D. Karamanis, I. Dillmann, Roberto Losito, K. Fujii, Fabio Belloni, F. Gramegna, S. Isaev, U. Abbondanno, E. Berthoumieux, C. Carrapiço, E. Gonzalez-Romero, B. Haas, A. Plukis, J. Marganiec, S. Andriamonje, P. F. Mastinu, Rene Reifarth, P. Pavlopoulos, J. M. Quesada, M. Krtička, F. Calviño, T. Martinez, R. C. Haight, L. Audouin, Michael Wiescher, D. Villamarin, Marco T. Pigni, C. Eleftheriadis, Yacine Kadi, P. Cennini, M. Mosconi, C. Stephan, S. O'Brien, R. Terlizzi, F. Bečvář, K. Wisshak, C. T. Papadopoulos, W. Dridi, S. Marrone, M. Kerveno, H. Wendler, Alberto Mengoni, H. Álvarez, J. L. Tain, F. Gunsing, Cristian Massimi, and H. Leeb
Subjects: Physics, Nuclear reaction, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Resonance, Nuclear data, 01 natural sciences, 7. Clean energy, Neutron spectroscopy, Nuclear physics, Cross section (physics), Neutron capture, 0103 physical sciences, Neutron, 010306 general physics, Energy (signal processing)
Abstract: The cross section of the reaction {sup 197}Au(n,{gamma}) was measured with the time-of-flight technique at the n{_}TOF (neutron time-of-flight) facility in the unresolved resonance region between 5 and 400 keV using a pair of C{sub 6}D{sub 6} (where D denotes {sup 2}H) liquid scintillators for the detection of prompt capture {gamma} rays. The results with a total uncertainty of 3.9%-6.7% for a resolution of 20 bins per energy decade show fair agreement with the Evaluated Nuclear Data File Version B-VII.0 (ENDF/B-VII.0), which contains the standard evaluation. The Maxwellian-averaged cross section (MACS) at 30 keV is in excellent agreement with the one according to the ENDF/B-VII.0 evaluation and 4.7% higher than the MACS measured independently by activation technique. Structures in the cross section, which had also been reported earlier, have been interpreted as being due to clusters of resonances.
Published: 2011

41. Neutron-induced fission cross-section of 233U in the energy range 0.5 < En < 20 MeV

Author: M. Krtička, Masayuki Igashira, L. Tavora, C. Eleftheriadis, R. Ferreira-Marques, T. Martinez, Ralf Plag, Thomas Rauscher, R. Vlastou, E. Berthoumieux, D. Karadimos, S. David, G. Tagliente, Carlos Guerrero, A. Plukis, Heinz Oberhummer, G. Cortes, P. Rullhusen, I. Savvidis, Marco Calviani, J. Andrzejewski, M. C. Vincente, I. Duran, M. Rosetti, F. Voss, Christoph A. Stephan, A. Herrera-Martinez, N. Patronis, W.I. Furman, R. C. Haight, F. Gramegna, P. Pavlopoulos, Roberto Capote, E. Kossionides, J. Marganiec, J. Salgado, Arnaud Ferrari, U. Abbondanno, S. Andriamonje, A. Poch, Alberto Mengoni, A. J. M. Plompen, K. Fujii, Javier Praena, E. Chiaveri, C. A. Papachristodoulou, G. Aerts, P. F. Mastinu, G. Vannini, G. Rudolf, I. Lopes, C. Paradela, P. E. Koehler, L. Sarchiapone, M. Meaze, M. Dahlfors, F. Käppeler, H. Álvarez, P. Vaz, C. Lamboudis, J. L. Tain, F. Belloni, D. Cano-Ott, P. Cennini, Aaron Couture, D. Villamarin, James L. Cox, J. Pancin, Michael Heil, Manuel Lozano, A. Pavlik, C. Domingo-Pardo, C. T. Papadopoulos, V. Chepel, C. Rubbia, S. Lukic, Y. Kadi, Isabel S. Gonçalves, A. Goverdovski, C. Pretel, S. Marrone, F. Alvarez-Velarde, K. Wisshak, M. Kerveno, M. Mosconi, Corrie S. Moreau, M. Embid-Segura, Gerald Badurek, P. Baumann, S. O'Brien, L. Perrot, S. Walter, A. Lindote, D. Karamanis, Michael Wiescher, R. Terlizzi, Nicola Colonna, Vasilis Vlachoudis, Marco T. Pigni, I. Dillmann, F. Gunsing, Cristian Massimi, C. Carrapiço, E. Gonzalez-Romero, F. Calviño, H. Leeb, Rene Reifarth, J. M. Quesada, L. Tassan-Got, B. Haas, C. Santos, F. Bečvář, W. Dridi, A. Ventura, L. Audouin, F. Neves, P. M. Milazzo, E. Jericha, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci, Pôle Universitaire Léonard de Vinci (PULV), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), nTOF, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Range (particle radiation), Nuclear and High Energy Physics, Large Hadron Collider, 010308 nuclear & particles physics, Fission, Physics::Instrumentation and Detectors, Hadron, Flux, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, Nuclear physics, 0103 physical sciences, Ionization chamber, Nuclear fusion, Neutron, 010306 general physics, Nuclear Experiment
Abstract: The neutron-induced fission cross-section of 233U has been measured at the CERN n_TOF facility relative to the standard fission cross-section of 235U between 0.5 and 20MeV. The experiment was performed with a fast ionization chamber for the detection of the fission fragments and to discriminate against $ \alpha$ -particles from the natural radioactivity of the samples. The high instantaneous flux and the low background of the n_TOF facility result in data with uncertainties of $ \approx$ 3% , which were found in good agreement with previous experiments. The high quality of the present results allows to improve the evaluation of the 233U (n,f) cross-section and, consequently, the design of energy systems based on the Th/U cycle.
Published: 2011

42. Study of Photon Strength Function of Actinides: the Case of 235U, 238Np and 241Pu

Author: M. Mosconi, A. Goverdovski, S. O'Brien, F. Alvarez-Velarde, I. Dillman, Gerald Badurek, R. Terlizzi, Carlos Guerrero, U. Abbondanno, Heinz Oberhummer, Marco Calviani, Christoph A. Stephan, S. Walter, D. Karamanis, R. Dolfini, Ralf Plag, J. Salgado, W.I. Furman, M. Kerveno, L. Tavora, C. A. Papachristodoulou, A. Poch, M. C. Vicente, E. Kossionides, J. Pancin, P. Rullhusen, N. Colonna, Thomas Rauscher, S. Isaev, A. Herrera-Martinez, N. Patronis, Javier Praena, M. Dahlfors, F. Neves, P. M. Milazzo, D. Karadimos, P. Vaz, C. Eleftheriadis, I. Duran, I. Savvidis, Rene Reifarth, D. Cano-Ott, E. Gonzalez-Romero, G. Aerts, Y. Kadi, Aaron Couture, P. Pavlopoulos, A. Mengoni, H. Álvarez, S. David, H. Frais-Koelbl, J. L. Tain, V. Ketlerov, C. Lampoudis, G. Tagliente, A. Plukis, A. Pavlik, Manuel Lozano, C. Domingo-Pardo, A. Carrillo de Albornoz, L. Ferrant, Martin Heil, J. M. Quesada, J. Marganiec, R. C. Haight, C. T. Papadopoulos, S. Andriamonje, L. Tassan-Got, C. Paradela, L. Sarchiapone, M. Meaze, R. Vlastou, E. Jericha, C. Rubbia, T. Martiez, C. Pretel, E. Berthoumieux, E. Chiaveri, M. Rosetti, P. F. Mastinu, Isabel S. Gonçalves, L. Audouin, S. Marrone, P. E. Koehler, E. Mendoza, Michael Wiescher, K. Fujii, M. Krtička, B. Haas, D. Villamarin, R. Ferreira-Marques, Marco T. Pigni, Anthony Ferrari, L. Marques, E. Griesmayer, Fabio Belloni, L. Perrot, F. Käppeler, V. Chepel, G. Rudolf, P. Baumann, W. Dridi, Masayuki Igashira, A. Ventura, K. Wisshak, Isabel Lopes, Corrie S. Moreau, A. J. M. Plompen, H. Wendler, S. Lukic, James L. Cox, F. Calviño, F. Voss, H. Leeb, F. Becvar, Vasilis Vlachoudis, F. Gramegna, F. Gunsing, Cristian Massimi, G. Cortes, Roberto Capote, P.A. Assimakopoulos, G. Vannini, M. Oshima, J. Andrzejewski, V. Konovalov, A. Lindote, P. Cennini, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, Guerrero C., Alvarez-Velarde F., Cano-Ott D., Martiez T., Mendoza E., Villamarin D., Colonna N., H. Meaze M., Marrone S., Tagliente G., Terlizzi R., Belloni F., Abbondanno U., Fujii K., M. Milazzo P., Moreau C., Aerts G., Berthoumieux E., Dridi W., Gunsing F., Pancin J., Perrot L., Plukis A., Alvarez H., Duran I., Paradela C., Andriamonje S., Calviani M., Chiaveri E., Gonzalez-Romero E., Kadi Y., C. Vicente M., Vlachoudis V., Andrzejewski J., Marganiec J., Assimakopoulos P., Karadimos D., Karamanis D., Papachristodoulou C., Patronis N., Audouin L., David S., Ferrant L., Isaev S., Stephan C., Tassan-Got L., Badurek G., Jericha E., Leeb H., Oberhummer H., T. Pigni M., Baumann P., Kerveno M., Lukic S., Rudolf G., Becvar F., Krticka M., Calvino F., Capote R., Carrillo De Albornoz A., Marques L., Salgado J., Tavora L., Vaz P., Cennini P., Dahlfors M., Ferrari A., Gramegna F., Herrera-Martinez A., Mastinu P., Praena J., Sarchiapone L., Wendler H., Chepel V., Ferreira-Marques R., Goncalves I., Lindote A., Lopes I., Neves F., Cortes G., Poch A., Pretel C., Couture A., Cox J., Obrien S., Wiescher M., Dillman I., Kappeler F., Mosconi M., Plag R., Voss F., Walter S., Wisshak K., Dolfini R., Rubbia C., Domingo-Pardo C., L. Tain J., Eleftheriadis C., Savvidis I., Frais-Koelbl H., Griesmayer E., Furman W., Konovalov V., Goverdovski A., Ketlerov V., Haas B., Haight R., Reifarth R., Heil M., Igashira M., Koehler P., Kossionides E., Lampoudis C., Lozano M., Quesada J., Massimi C., Vannini G., Mengoni A., Oshima M., Papadopoulos C., Vlastou R., Pavlik A., Pavlopoulos P., Plompen A., Rullhusen P., Rauscher T., Rosetti M., Ventura A., Département d'Electronique, des Détecteurs et d'Informatique pour la Physique (ex SEDI) (DEDIP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aval du cycle et Energie Nucléaire (ACEN), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), TOF, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Energies::Energia nuclear [Àrees temàtiques de la UPC], Neutrons, Work (thermodynamics), Photon, 010308 nuclear & particles physics, General Physics and Astronomy, radiative capture cross section, Actinide, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], NEUTRON INDUCED REACTIONS, Electromagnetisme, 01 natural sciences, Spectral line, Nuclear physics, Neutron capture, Electromagnetism, Excited state, 0103 physical sciences, Photon Strength Function, Atomic physics, 010306 general physics, Absorption (electromagnetic radiation), Nuclear Experiment, Energy (signal processing)
Abstract: The decay from excited levels in medium and heavy nuclei can be described in a statistical approach by means of Photon Strength Functions and Level Density distributions. The study of electromagnetic cascades following neutron capture based on the use of high e ciency detectors has been shown to be well suited for probing the properties of the Photon Strength Function of heavy (high level density) and/or radioactive (high background) nuclei. In this work we have investigated for the rst time the validity of the recommended PSF of actinides, in particular 235U, 238Np and 241Pu. Our study includes the search for resonance structures in the PSF below Sn and draws conclusions regarding their existence and their characteristics in terms of energy, width and electromagnetic nature.
Published: 2011

43. Auto-correlation and variance-to-mean measurements in a subcritical core obeying multiple alpha-modes

Author: José-Luis Muñoz-Cobo, Carl Berglöf, E. González-Romero, D. Villamarin, M. Fernández-Ordóñez, V. Bécares, and Victor Bournos
Subjects: Physics, Neutron noise experiment, Rossi-α, Astrophysics::High Energy Astrophysical Phenomena, Hadron, Autocorrelation, Dead time, Auto-correlation, INGENIERIA NUCLEAR, Noise (electronics), Baryon, Variance-to-mean, Nuclear Energy and Engineering, Feynman-α, Reactivity determination, Quantum mechanics, Neutron source, Neutron, Statistical physics, Nucleon
Abstract: [EN] Neutron noise measurements based on the Rossi-α and Feynman-α methodologies have been performed in a heterogeneous subcritical system. It is shown that the traditional single alpha-mode formulations of the Rossi-α and Feynman-α methods are not applicable due to the presence of higher alpha-modes. Formalisms taking into account multiple alpha-modes are applied resulting in satisfactory results. Three alpha-modes could be identified using the Rossi-α method, whereas only two could be obtained using the Feynman-α method. In the Feynman-α case, the possibility to obtain the fastest decaying alpha-mode was diminished due to detector dead time effects. It was found that the slowest decaying alpha-mode does not exactly correspond to the prompt decay found in pulsed neutron source measurements, which confirms the results of previous studies. Strengths and weaknesses of the multiple alpha-mode Rossi-α and Feynman-α methods observed in this study are pointed out., This work was supported by IP-EUROTRANS contract no. FI6 W-CT2005-516520, the ENRESA-CIEMAT agreement for the Transmutacion Aplicada a los Residuos Radiactivos de Alta Actividad, Svensk Karnbranslehantering AB (SKB, the Swedish Nuclear Fuel and Waste Management Co) and the Swedish Institute through the Visby program.
Published: 2011
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44. Neutron-induced fission cross section ofU234andNp237measured at the CERN Neutron Time-of-Flight (n_TOF) facility

Author: J. Pancin, E. Chiaveri, D. Cano-Ott, V. Chepel, P. Baumann, C. Moreau, L. Perrot, B. Berthier, C. Carrapiço, G. Aerts, M. Dahlfors, L. Tavora, W.I. Furman, P. Vaz, Michael Heil, C. Le Naour, E. Gonzalez-Romero, E. Kossionides, Alberto Ventura, Aaron Couture, Javier Praena, M. Embid-Segura, A. Lindote, C. A. Papachristodoulou, S. David, D. Karamanis, Manuel Lozano, P. E. Koehler, W. Dridi, A. Plukis, L. Ferrant, C. Lampoudis, A. Pavlik, P. Rullhusen, G. Tagliente, S. Walter, C. Domingo-Pardo, C. Santos, Ralf Plag, Marco Calviani, F. Gramegna, S. Marrone, F. Bečvář, P. Cennini, H. Álvarez, Carlos Guerrero, U. Abbondanno, I. Savvidis, J. L. Tain, Iris Dillmann, Alfredo Ferrari, R. Ferreira-Marques, E. Jericha, M. Mosconi, F. Alvarez-Velarde, Heinz Oberhummer, R. Vlastou, J. Marganiec, S. Andriamonje, J. Salgado, M. Kerveno, Gerald Badurek, C. Papadopoulos, C. Stephan, R. C. Haight, A. Poch, I. Goncalves, K. Fujii, M. C. Vincente, R. Terlizzi, Thomas Rauscher, P. F. Mastinu, P. Assimakopoulos, D. Karadimos, S. O'Brien, I. Duran, L. Audouin, Rene Reifarth, A. Herrera-Martinez, N. Patronis, S. Isaev, M. Krtička, F. Calviño, T. Martinez, P. Pavlopoulos, Alberto Mengoni, L. Sarchiapone, J. M. Quesada, Michael Wiescher, F. Käppeler, J. Cox, M. Igashira, E. Berthoumieux, Laurent Tassan-Got, C. Eleftheriadis, C. Pretel, Yacine Kadi, D. Villamarin, Marco T. Pigni, F. Voss, Nicola Colonna, H. Leeb, A. J. M. Plompen, C. Paradela, G. Rudolf, I. Lopes, S. Lukic, B. Haas, G. Vannini, F. Gunsing, P. M. Milazzo, D. Trubert, Cristian Massimi, M. Oshima, J. Andrzejewski, Carlo Rubbia, G. Cortes, D. Tarrío, V. Vlachoudis, Roberto Capote, F. Neves, and K. Wisshak
Subjects: Physics, Nuclear reaction, Nuclear and High Energy Physics, Isotopes of uranium, 010308 nuclear & particles physics, Fission, Hadron, 01 natural sciences, Nuclear physics, Time of flight, Cross section (physics), 0103 physical sciences, Neutron, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: A high-resolution measurement of the neutron-induced fission cross section of U234 and Np237 has been performed at the CERN Neutron Time-of-Flight facility. The cross sections have been determined in a wide energy range from 1 eV to 1 GeV using the evaluated U235 cross section as reference. In these measurements the energy determination for the U234 resonances could be improved, whereas previous discrepancies for the Np237 resonances were confirmed. New cross-section data are provided for high neutron energies that go beyond the limits of prior evaluations, obtaining important differences in the case of Np237. © 2010 The American Physical Society.
Published: 2010

45. Neutron physics of the Re/Os clock. I. Measurement of the (n,γ) cross sections ofOs186,187,188at the CERN n_TOF facility

Author: A. J. M. Plompen, L. Tavora, M. Krtička, F. Calviño, A. Pavlik, F. Voss, D. Karamanis, I. Dillmann, R. Ferreira-Marques, V. Chepel, R. C. Haight, Vasilis Vlachoudis, H. Alvarez-Pol, P. Rullhusen, G. Rudolf, C. Paradela, James L. Cox, L. Sarchiapone, S. Lukic, F. Gramegna, L. Audouin, E. Jericha, S. David, R. Gallino, Matthias Heil, G. Tagliente, J. Pancin, G. Cortes, P. Cennini, Carlos Guerrero, U. Abbondanno, Michael Wiescher, V. Ketlerov, M. Oshima, Sara Bisterzo, S. Andriamonje, E. Griesmayer, M. C. Vincente, A. Herrera-Martinez, N. Patronis, F. Bečvář, Heinz Oberhummer, Y. Kadi, E. Chiaveri, M. Embid-Segura, H. Frais-Koelbl, C. T. Papadopoulos, M. Mosconi, Arnaud Ferrari, J. Andrzejewski, P. F. Mastinu, J. Marganiec, Alberto Mengoni, P. Baumann, G. Aerts, J. Salgado, F. Käppeler, L. Perrot, Masayuki Igashira, A. Poch, G. Badurek, S. Walter, Manuel Lozano, C. Eleftheriadis, C. Rubbia, Corrie S. Moreau, S. Isaev, S. O'Brien, K. Wisshak, F. Neves, N. Colonna, F. Alvarez-Velarde, Isabel S. Gonçalves, Thomas Rauscher, P. M. Milazzo, P. E. Koehler, A. Ventura, Ralf Plag, S. Marrone, M. Dahlfors, Roberto Capote, P.A. Assimakopoulos, L. Marques, R. Terlizzi, M. Kerveno, Isabel Lopes, D. Karadimos, E. Kossionides, R. Vlastou, P. Vaz, G. Vannini, Javier Praena, D. Cano-Ott, E. Berthoumieux, I. Duran, A. Plukis, Rene Reifarth, E. González-Romero, A. Carrillo de Albornoz, W.I. Furman, I. Savvidis, J. M. Quesada, Aaron Couture, H. Wendler, L. Tassan-Got, M. Calviani, C. Domingo-Pardo, V. Konovalov, C. Stephan, B. Haas, C. Lamboudis, J. L. Tain, M. Rosetti, F. Gunsing, C. A. Papachristodoulou, W. Dridi, Cristian Massimi, H. Leeb, P. Pavlopoulos, L. Ferrant, K. Fujii, L. Fitzpatrick, D. Villamarin, Fabio Belloni, C. Pretel, A. Lindote, A. Goverdovski, and R. Dolfini
Subjects: Physics, Nuclear reaction, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Gamma ray, Scintillator, 01 natural sciences, 7. Clean energy, Nuclear physics, Neutron capture, 13. Climate action, Nucleosynthesis, 0103 physical sciences, Neutron, s-process, 010303 astronomy & astrophysics, Radioactive decay
Abstract: The precise determination of the neutron capture cross sections of Os-186 and Os-187 is important to define the s-process abundance of Os-187 at the formation of the solar system. This quantity can be used to evaluate the radiogenic component of the abundance of Os-187 due to the decay of the unstable Re-187 (t(1/2) = 41.2 Gyr) and from this to infer the time duration of the nucleosynthesis in our galaxy (Re/Os cosmochronometer). The neutron capture cross sections of Os-186, Os-187, and Os-188 have been measured at the CERN n_TOF facility from 1 eV to 1 MeV, covering the entire energy range of astrophysical interest. The measurement has been performed by time-of-flight technique using isotopically enriched samples and two C6D6 scintillation detectors for recording the prompt. rays emitted in the capture events. Maxwellian averaged capture cross sections have been determined for thermal energies between kT = 5 and 100 keV corresponding to all possible s-process scenarios. The estimated uncertainties for the values at 30 keV are 4.1, 3.3, and 4.7% for Os-186, Os-187, and Os-188, respectively.
Published: 2010

46. Neutron physics of the Re/Os clock. III. Resonance analyses and stellar (n,γ) cross sections ofOs186,187,188

Author: D. Karamanis, I. Dillmann, V. Chepel, M. Kerveno, G. Rudolf, D. Villamarin, F. Gramegna, B. Haas, L. Tavora, M. Dahlfors, P. Pavlopoulos, R. Vlastou, E. Berthoumieux, P. Vaz, P. Baumann, E. Gonzalez-Romero, Marco Calviani, A. Lindote, J. Salgado, A. Poch, F. Bečvář, P. Rullhusen, W. Dridi, M. Oshima, A. Plukis, M. Embid-Segura, G. Cortes, F. Gunsing, Aaron Couture, Rene Reifarth, Sara Bisterzo, K. Fujii, J. Andrzejewski, L. Ferrant, J. Marganiec, M. C. Vincente, J. M. Quesada, L. Tassan-Got, A. Herrera-Martinez, N. Patronis, A. Goverdovski, F. Alvarez-Velarde, S. Andriamonje, E. Chiaveri, G. Aerts, Cristian Massimi, C. Eleftheriadis, L. Fitzpatrick, A. Pavlik, P. F. Mastinu, Gerald Badurek, Arnaud Ferrari, P. Cennini, Fabio Belloni, C. Domingo-Pardo, R. C. Haight, Christoph A. Stephan, R. Dolfini, C. T. Papadopoulos, S. Lukic, C. Paradela, Roberto Capote, M. Mosconi, L. Sarchiapone, L. Audouin, Thomas Rauscher, A. Ventura, P.A. Assimakopoulos, S. O'Brien, C. Rubbia, J. Pancin, V. Konovalov, R. Terlizzi, E. Griesmayer, M. Krtička, G. Vannini, H. Leeb, C. Pretel, Manuel Lozano, Isabel S. Gonçalves, F. Calviño, Y. Kadi, Michael Wiescher, F. Voss, H. Frais-Koelbl, D. Karadimos, L. Marques, S. Marrone, S. David, G. Tagliente, E. Jericha, R. Ferreira-Marques, Nicola Colonna, K. Wisshak, Vasilis Vlachoudis, H. Alvarez-Pol, S. Isaev, C. Lamboudis, J. L. Tain, P. E. Koehler, H. Wendler, L. Perrot, F. Käppeler, M. Rosetti, I. Duran, I. Savvidis, A. Mengoni, V. Ketlerov, A. Carrillo de Albornoz, W.I. Furman, C. A. Papachristodoulou, Carlos Guerrero, U. Abbondanno, F. Neves, Heinz Oberhummer, P. M. Milazzo, S. Walter, Ralf Plag, R. Gallino, Michael Heil, D. Cano-Ott, E. Kossionides, Corrie S. Moreau, Javier Praena, A. J. M. Plompen, I. Lopes, James L. Cox, and Masayuki Igashira
Subjects: Physics, Nuclear reaction, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Resonance, 01 natural sciences, 7. Clean energy, Nuclear physics, Neutron capture, 13. Climate action, Nucleosynthesis, 0103 physical sciences, Neutron, Nucleon, s-process, 010303 astronomy & astrophysics, Stellar evolution
Abstract: Neutron resonance analyses have been performed for the capture cross sections of Os-186, Os-187, and Os-188 measured at the n_TOF facility at CERN. Resonance parameters have been extracted up to 5, 3, and 8 keV, respectively, using the SAMMY code for a full R-matrix fit of the capture yields. From these results average resonance parameters were derived by a statistical analysis to provide a comprehensive experimental basis for modeling of the stellar neutron capture rates of these isotopes in terms of the Hauser-Feshbach statistical model. Consistent calculations for the capture and inelastic reaction channels are crucial for the evaluation of stellar enhancement factors to correct the Maxwellian averaged cross sections obtained from experimental data for the effect of thermally populated excited states. These factors have been calculated for the full temperature range of current scenarios of s-process nucleosynthesis using the combined information of the experimental data in the region of resolved resonances and in the continuum. The consequences of this analysis for the s-process component of the Os-187 abundance and the related impact on the evaluation of the time duration of galactic nucleosynthesis via the Re/Os cosmochronometer are discussed.
Published: 2010

47. TheZr92(n,γ) reaction and its implications for stellar nucleosynthesis

Author: D. Villamarin, J. Andrzejewski, Marco T. Pigni, Rene Reifarth, Carlo Rubbia, V. Vlachoudis, E. Jericha, J. Marganiec, S. Andriamonje, I. Savvidis, P. Pavlopoulos, L. Tavora, J. M. Quesada, E. Kossionides, F. Bečvář, P. F. Mastinu, M. Calviani, J. Pancin, P. Rullhusen, E. Chiaveri, D. Cano-Ott, Javier Praena, F. Gunsing, F. Alvarez-Velarde, S. David, G. Tagliente, M. C. Vincente, M. Kerveno, Gerald Badurek, Alfredo Ferrari, R. Ferreira-Marques, G. Cortes, L. Sarchiapone, Sara Bisterzo, C. Eleftheriadis, P. Cennini, A. Herrera-Martinez, N. Patronis, P. M. Milazzo, M. Krtička, F. Calviño, J. Cox, R. Gallino, Yacine Kadi, Alberto Mengoni, T. Martinez, R. C. Haight, D. Karamanis, U. Abbondanno, Laurent Tassan-Got, Michael Heil, M. Mosconi, M. Igashira, L. Perrot, L. Audouin, C. Stephan, S. O'Brien, J. Salgado, A. Poch, C. Santos, B. Haas, C. T. Papadopoulos, Michael Wiescher, R. Terlizzi, R. Vlastou, C. Pretel, E. Berthoumieux, E. Gonzalez-Romero, H. Leeb, A. Plukis, W. Dridi, F. Gramegna, Roberto Capote, Ralf Plag, I. Goncalves, S. Walter, I. Duran, F. Neves, Thomas Rauscher, K. Wisshak, C. Moreau, F. Käppeler, C. Carrapiço, S. Marrone, C. Massimi, G. Vannini, V. Chepel, C. Paradela, K. Fujii, S. Lukic, P. Baumann, H. Álvarez, C. Lamboudis, J. L. Tain, D. Karadimos, H. Wendler, Fabio Belloni, F. Voss, Carlos Guerrero, Heinz Oberhummer, Nicola Colonna, W.I. Furman, A. Lindote, C. A. Papachristodoulou, A. J. M. Plompen, M. Rosetti, G. Rudolf, I. Lopes, G. Aerts, I. Dillmann, A. Pavlik, C. Domingo-Pardo, M. Dahlfors, P. Vaz, Alberto Ventura, Aaron Couture, M. Embid-Segura, and Manuel Lozano
Subjects: Physics, Nuclear reaction, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, 7. Clean energy, 01 natural sciences, Neutron temperature, Nuclear physics, Neutron capture, Stellar nucleosynthesis, Nucleosynthesis, 0103 physical sciences, Isotopes of zirconium, Neutron, Nuclear Experiment, s-process, 010303 astronomy & astrophysics
Abstract: Because the relatively small neutron capture cross sections of the zirconium isotopes are difficult to measure, the results of previous measurements are often not adequate for a number of problems in astrophysics and nuclear technology. Therefore, the Zr-92(n,gamma) cross section has been remeasured at the CERN n_TOF facility, providing a set of improved parameters for 44 resonances in the neutron energy range up to 40 keV. With this information the cross-section uncertainties in the keV region could be reduced to 5% as required for s-process nucleosynthesis studies and technological applications.
Published: 2010

48. Au197(n,γ) cross section in the resonance region

Author: L. Tavora, S. David, A. Herrera-Martinez, P. Rullhusen, G. Tagliente, G. Aerts, Alberto Mengoni, C. Lampoudis, A. Pavlik, C. Domingo-Pardo, M. Igashira, J. Cox, M. Dahlfors, Georgios Perdikakis, P. Vaz, Laurent Tassan-Got, E. Kossionides, F. Bečvář, Alberto Ventura, Aaron Couture, A. J. M. Plompen, E. Mendoza, G. Rudolf, I. Lopes, P. Cennini, A. Poch, Javier Praena, M. Krtička, F. Calviño, T. Martinez, L. Perrot, M. Mosconi, D. Karamanis, I. Dillmann, C. Stephan, S. O'Brien, L. Ferrant, R. Terlizzi, J. Pancin, E. Chiaveri, V. Chepel, D. Cano-Ott, Carlos Guerrero, G. Vannini, I. Savvidis, C. Lederer, C. Massimi, Heinz Oberhummer, P. Baumann, R. Sarmento, Alfredo Ferrari, R. Ferreira-Marques, F. Käppeler, M. Rosetti, P. E. Koehler, H. Leeb, F. Gramegna, Ralf Plag, G. Cortes, Michael Heil, F. Alvarez-Velarde, F. Voss, I. Duran, Manuel Lozano, Gerald Badurek, M. Calviani, L. Sarchiapone, C. Carrapiço, I. Goncalves, W.I. Furman, F. Gunsing, Roberto Capote, P.A. Assimakopoulos, C. Moreau, Thomas Rauscher, F. Neves, A. Lindote, E. Jericha, D. Karadimos, K. Fujii, K. Wisshak, R. Vlastou, Nicola Colonna, Fabio Belloni, S. Walter, C. Pretel, B. Haas, C. Paradela, S. Lukic, U. Abbondanno, Rene Reifarth, P. Pavlopoulos, E. Berthoumieux, J. M. Quesada, J. Andrzejewski, Carlo Rubbia, V. Vlachoudis, R. C. Haight, P. M. Milazzo, L. Audouin, Michael Wiescher, J. Marganiec, S. Andriamonje, C. Eleftheriadis, P. F. Mastinu, E. Gonzalez-Romero, A. Plukis, Yacine Kadi, C. T. Papadopoulos, D. Villamarin, Marco T. Pigni, W. Dridi, S. Galanopoulos, S. Marrone, M. Kerveno, H. Álvarez, and J. L. Tain
Subjects: Physics, Nuclear reaction, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Resolution (electron density), Gamma ray, Resonance, 01 natural sciences, 7. Clean energy, Spectral line, Neutron spectroscopy, Cross section (physics), 0103 physical sciences, Atomic physics, 010306 general physics, Absorption (electromagnetic radiation)
Abstract: The (n,γ) cross section of Au197 has been measured at n-TOF in the resolved resonance region, up to 5keV, with the aim of improving the accuracy in an energy range where it is not yet considered standard. The measurements were performed with two different experimental setup and detection techniques, the total energy method based on C6D6 detectors, and the total absorption calorimetry based on a 4π BaF2 array. By comparing the data collected with the two techniques, two accurate sets of neutron-capture yields have been obtained, which could be the basis for a new evaluation leading to an extended cross-section standard. Overall good agreement is found between the n-TOF results and evaluated cross sections, with some significant exceptions for small resonances. A few resonances not included in the existing databases have also been observed. © 2010 The American Physical Society.
Published: 2010

49. Forthcoming (n,γ) measurements on the Fe and Ni isotopes at CERN n_TOF

Author: G. Cortes, D. Tarrío, F. Belloni, R. Gallino, F. Gunsing, B. Berthier, F. Cerutti, Cristian Massimi, D. Cano-Ott, F. Bečvář, C. Paradela, M. Brugger, E. Mendoza, Ralf Nolte, Nicola Colonna, L. Audouin, Matthias Heil, Vasilis Vlachoudis, M. Krtička, F. Calviño, C. Carrapiço, I. F. Gonçalves, Srinivasan Ganesan, I. Duran, T. Martinez, Vlad Avrigeanu, F. Gramegna, R Vlastou, F. Käppeler, Y. Kadi, P. Vaz, G. Giubrone, Ralf Plag, R. Sarmento, Anton Wallner, M. B. Gomez Hornillos, Alberto Ventura, G. Tagliente, Javier Praena, M. Mosconi, E. Jericha, D. Villamarin, A. Pavlik, Arnaud Ferrari, M. Mirea, C. Domingo-Pardo, J. Marganiec, E. Lebbos, S. Andriamonje, E. Berthoumieux, Marco Calviani, M. Moinul, H. Leeb, J. Andrzejewski, P. M. Milazzo, K. G. Ioannides, P Mastinu, Manuel Lozano, Roberto Losito, D. Karadimos, E. González-Romero, Carlos Guerrero, V. Variale, C. Lederer, W.I. Furman, J Perlowski, G. Vannini, C Wiess, Iris Dillmann, Rene Reifarth, J. M. Quesada, L. Tassan-Got, C. Rubbia, S. Marrone, F Chiaveri, V Gorlychev, Alberto Mengoni, J. L. Tain, S Harissopulos, Universitat Politècnica de Catalunya. Departament de Física, and Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group
Subjects: Physics, Nuclear reaction, Neutrons, History, Large Hadron Collider, Física [Àrees temàtiques de la UPC], Cross section, nTOF, Astrophysics::High Energy Astrophysical Phenomena, Neutron, nuclear reaction, Computer Science Applications, Education, ddc, Nuclear physics, Neutron capture, Time of flight, Nucleosynthesis, CERN, Neutron cross section, ddc:530, s-process, Nuclear Experiment
Abstract: An overview of the past, present and future research activities at the CERN neutron time of flight facility n-TOF is given, with special focus on the astrophysical aspects. During the first campaign (Phase I), neutron capture cross sections of relevance for several aspects of the s-process nucleosynthesis have been measured. A second campaign has recently started (Phase II), aiming at the study of the weak s-process component via accurate (n,γ) measurements of the Fe and Ni isotopes. Some changes in the facility will allow us to perform these measurements with improved experimental conditions. © 2010 IOP Publishing Ltd.
Published: 2010
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50. High-accuracyU233(n,f)cross-section measurement at the white-neutron source n_TOF from near-thermal to1MeV neutron energy

Author: B. Berthier, G. Aerts, Michael Heil, A. Lindote, S. David, F. Neves, C. Pretel, G. Tagliente, P. M. Milazzo, C. Santos, K. Fujii, A. Herrera-Martinez, N. Patronis, Fabio Belloni, Arnaud Ferrari, F. Bečvář, L. Perrot, L. Ferrant, M. Dahlfors, P. Cennini, C. Eleftheriadis, Alberto Mengoni, P. Vaz, M. Embid-Segura, E. Kossionides, V. Chepel, G. Vannini, J. Pancin, E. Jericha, G. Rudolf, Thomas Rauscher, Javier Praena, M. Kerveno, J. Salgado, D. Villamarin, P. Baumann, Rene Reifarth, Aaron Couture, D. Karadimos, A. Poch, M. Mosconi, Y. Kadi, Marco T. Pigni, A. J. M. Plompen, Manuel Lozano, D. Cano-Ott, S. O'Brien, C. Lampoudis, A. Pavlik, G. Cortes, A. Goverdovski, F. Alvarez-Velarde, C. Domingo-Pardo, R. Terlizzi, V. Ketlerov, J. M. Quesada, Roberto Capote, Gerald Badurek, P.A. Assimakopoulos, L. Tassan-Got, Marco Calviani, L. Tavora, P. E. Koehler, Masayuki Igashira, M. Rosetti, B. Haas, P. Pavlopoulos, P. Rullhusen, I. Savvidis, I. Lopes, E. Gonzalez-Romero, L. Sarchiapone, W. Dridi, H. Álvarez, J. L. Tain, A. Ventura, C. T. Papadopoulos, M. C. Vincente, I. Duran, A. Plukis, C. Rubbia, Christoph A. Stephan, Isabel S. Gonçalves, S. Marrone, F. Käppeler, James L. Cox, M. Krtička, F. Calviño, R. Vlastou, E. Berthoumieux, R. Ferreira-Marques, T. Martinez, J. Marganiec, S. Andriamonje, Carlos Guerrero, E. Chiaveri, U. Abbondanno, P. F. Mastinu, Heinz Oberhummer, R. C. Haight, C. Paradela, D. Karamanis, I. Dillmann, L. Audouin, Corrie S. Moreau, Michael Wiescher, C. Carrapiço, W.I. Furman, C. A. Papachristodoulou, S. Walter, Ralf Plag, S. Lukic, F. Gunsing, Cristian Massimi, F. Voss, Nicola Colonna, Vasilis Vlachoudis, F. Gramegna, K. Wisshak, J. Andrzejewski, V. Konovalov, and H. Leeb
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Fission, Neutron radiation, 7. Clean energy, 01 natural sciences, Neutron temperature, Nuclear physics, Cross section (physics), Neutron flux, 0103 physical sciences, Uranium-235, Neutron source, Neutron, Nuclear Experiment, 010306 general physics
Abstract: The U-233(n, f) cross section has been measured at the white neutron source n_TOF in a wide energy range with a dedicated fission ionization chamber. We report here the results from similar to 30 meV to 1 MeV neutron energy. The U-233(n, f) cross section has been determined relative to a reference sample of U-235(n, f) measured simultaneously with the same detector. The very high instantaneous neutron flux and the intrinsically low background of the n_TOF installation result in an accuracy around 3 range, while the energy resolution of the neutron beam allows for an accurate description of the fission cross section by means of R-matrix analysis over a wide energy range. The results are, in general, in good agreement with the most recent high-accuracy measurement of this fission cross section, over the more limited range of the previous measurements, and indicated that even the latest evaluations underestimate the cross section in the epithermal region. The present high-quality data provide the basis for a more precise evaluation of the U-233 fission cross section and for improving the reliability of databases needed for the design of new energy systems based on the Th/U cycle.
Published: 2009

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