Search

Your search keyword '"Fernández Ordóñez M."' showing total 78 results
Start Over Author "Fernández Ordóñez M."
78 results on '"Fernández Ordóñez M."'

1. Investigating the intra-nuclear cascade process using the reaction 136Xe on deuterium at 500 AMeV

Author

Rejmund F., Ricciardi M.V., Pleskač R., Pereira J., Napolitani P., Leray S., Lafriaskh A., Kelić A., Henzlova D., Henzl V., Heinz A., Fernández Ordóñez M., Fernández-Domínguez B., Enqvist T., Casarejos E., Boudard A., Bernas M., Audouin L., Armbruster P., Pérez-Loureiro D., Benlliure J., Alcántara-Núñez J.A., Stéphan C., Schmidt K.-H., Schmitt C., Tassan-Got L., Villagrasa C., Volant C., and Yordanov O.

Subjects
Physics, QC1-999
Abstract

More than 600 residual nuclei, formed in the spallation of 136Xe projectiles impinging on deuterium at 500 AMeV of incident energy, have been unambiguously identified and their production cross sections have been determined with high accuracy. By comparing these data to others previously measured for the reactions 136Xe + p at 1 AGeV and 136Xe + p at 500 AMeV we investigated the role that neutrons play in peripheral collisions and to understand the energy dissipation in frontal collisions in spallation reactions.

Published
2010
Full Text
View/download PDF

2. $^{62}$Ni($n,\gamma$) and $^{63}$Ni($n,\gamma$) cross sections measured at n_TOF/CERN

Author

Lederer, C., Massimi, C., Berthoumieux, E., Colonna, N., Dressler, R., Guerrero, C., Gunsing, F., Käppeler, F., Kivel, N., Pignatari, M., Reifarth, R., Schumann, D., Wallner, A., Altstadt, S., Andriamonje, S., Andrzejewski, J., Audouin, L., Barbagallo, M., Becares, V., Becvar, F., Belloni, F., Berthier, B., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviani, M., Calvino, F., Cano-Ott, D., Carrapico, C., Cerutti, F., Chiaveri, E., Chin, M., Cortes, G., Cortes-Giraldo, M. A., Dillmann, I., Domingo-Pardo, C., Duran, I., Dzysiuk, N., Eleftheriadis, C., Fernandez-Ordonez, M., Ferrari, A., Fraval, K., Ganesan, S., Garcıa, A. R., Giubrone, G., Gomez-Hornillos, M. B., Goncalves, I. F., Gonzalez-Romero, E., Gramegna, F., Griesmayer, E., Gurusamy, P., Harrisopulos, S., Heil, M., Ioannides, K., Jenkins, D. G., Jericha, E., Kadi, Y., Karadimos, D., Korschinek, G., Krticka, M., Kroll, J., Langer, C., Lebbos, E., Leeb, H., Leong, L. S., Losito, R., Lozano, M., Manousos, A., Marganiec, J., Marrone, S., Martinez, T., Mastinu, P. F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Mondalaers, W., Paradela, C., Pavlik, A., Perkowski, J., Plag, R., Plompen, A., Praena, J., Quesada, J. M., Rauscher, T., Riego, A., Roman, F., Rubbia, C., Sarmento, R., Schillebeeckx, P., Schmidt, S., Tagliente, G., Tain, J. L., Tarrıo, D., Tassan-Got, L., Tsinganis, A., Tlustos, L., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vermeulen, M. J., Versaci, R., Vlachoudis, V., Vlastou, R., Ware, T., Weigand, M., Weiß, C., Wright, T. J., and Zugec, P.

Subjects
Nuclear Experiment
Abstract

The cross section of the $^{62}$Ni($n,\gamma$) reaction was measured with the time-of-flight technique at the neutron time-of-flight facility n_TOF at CERN. Capture kernels of 42 resonances were analyzed up to 200~keV neutron energy and Maxwellian averaged cross sections (MACS) from $kT=5-100$ keV were calculated. With a total uncertainty of 4.5%, the stellar cross section is in excellent agreement with the the KADoNiS compilation at $kT=30$ keV, while being systematically lower up to a factor of 1.6 at higher stellar temperatures. The cross section of the $^{63}$Ni($n,\gamma$) reaction was measured for the first time at n_TOF. We determined unresolved cross sections from 10 to 270 keV with a systematic uncertainty of 17%. These results provide fundamental constraints on $s$-process production of heavier species, especially the production of Cu in massive stars, which serve as the dominant source of Cu in the solar system.

Published
2014
Full Text
View/download PDF

3. Extending the north-east limit of the chart of nuclides

Author

Benlliure, J., Alvarez-Pol, H., Kurtukian-Nieto, T., Schmidt, K. -H., Audouin, L., Blank, B., Becker, F., Casarejos, E., Cortina-Gil, D., Enqvist, T., Fernández, B., Fernández-Ordóñez, M., Giovinazzo, J., Henzlova, D., Junghans, A. R., Jurado, B., Napolitani, P., Pereira, J., Rejmund, F., and Yordanov, O.

Subjects
Nuclear Experiment
Abstract

The existence of nuclei with exotic combinations of protons and neutrons provides fundamental information on the forces acting between nucleons. The maximum number of neutrons a given number of protons can bind, neutron drip line1, is only known for the lightest chemical elements, up to oxygen. For heavier elements, the larger its atomic number, the farther from this limit is the most neutron-rich known isotope. The properties of heavy neutron-rich nuclei also have a direct impact on understanding the observed abundances of chemical elements heavier than iron in our Universe. Above half of the abundances of these elements are thought to be produced in rapid-neutron capture reactions, r-process, taking place in violent stellar scenarios2 where heavy neutron-rich nuclei, far beyond the ones known up today, are produced. Here we present a major step forward in the production of heavy neutron-rich nuclei: the discovery of 73 new neutron-rich isotopes of chemical elements between tantalum (Z=72) and actinium (Z=89). This result proves that cold-fragmentation reactions3 at relativistic energies are governed by large fluctuations in isospin and energy dissipation making possible the massive production of heavy neutron-rich nuclei, paving then the way for the full understanding of the origin of the heavier elements in our Universe. It is expected that further studies providing ground and structural properties of the nuclei presented here will reveal further details on the nuclear shell evolution along Z=82 and N=126, but also on the understanding of the stellar nucleosyntheis r-process around the waiting point at A~190 defining the speed of the matter flow towards heavier fissioning nuclei.

Published
2010

4. Production of medium-mass neutron-rich nuclei in reactions induced by 136Xe projectiles at 1 A GeV on a beryllium target

Author

Benlliure, J., Fernandez-Ordonez, M., Audouin, L., Boudard, A., Casarejos, E., Ducret, J. E., Enqvist, T., Heinz, A., Henzlova, D., Henzl, V., Kelic, A., Leray, S., Napolitani, P., Pereira, J., Rejmund, F., Ricciardi, M. V., Schmidt, K. -H., Schmitt, C., Stephan, C., Tassan-Got, L., Volant, C., Villagrasa, C., and Yordanov, O.

Subjects
Nuclear Experiment
Abstract

Production cross sections of medium-mass neutron-rich nuclei obtained in the fragmentation of 136Xe projectiles at 1 A GeV have been measured with the FRagment Separator (FRS) at GSI. 125Pd was identified for the first time. The measured cross sections are compared to 238U fission yields and model calculations in order to determine the optimum reaction mechanism to extend the limits of the chart of the nuclides around the r-process waiting point at N=82., Comment: 9 pages, 6 figures

Published
2008
Full Text
View/download PDF

5. First access to beta half-lives approaching the r-process path near N=126

Author

Kurtukian-Nieto, T., Benlliure, J., Audouin, L., Becker, F., Blank, B., Borzov, I. N., Casarejos, E., Fernandez-Ordonez, M., Giovinazzo, J., Henzlova, D., Jurado, B., Langanke, K., Martinez-Pinedo, G., Pereira, J., Rejmund, F., Schmidt, K. -H., and Yordanov, O.

Subjects
Nuclear Experiment
Abstract

Heavy neutron-rich nuclei close to N=126 were produced by fragmentation of a 1 A GeV 208Pb beam at the FRS at GSI. The beta-decay half-lives of 8 nuclides have been determined. The comparison of the data with model calculations including an approach based on the self-consistent ground-state description and continuum QRPA considering the Gamow-Teller and first-forbidden decays provide a first indication on the importance of first-forbidden transitions around A=195. The measured data indicate that the matter flow in the r-process to heavier fissioning nuclei is faster than previously expected., Comment: 4 pages, 4 figures

Published
2007

6. Coincidence measurement of residues and light particles in the reaction 56Fe+p at 1 GeV per nucleon with SPALADIN

Author

Gentil, E. Le, Aumann, T., Bacri, C. O., Benlliure, J., Bianchin, S., Böhmer, M., Boudard, A., Brzychczyk, J., Casarejos, E., Combet, M., Donadille, L., Ducret, J. E., Fernandez-Ordoñez, M., Gernhäuser, R., Johansson, H., Kezzar, K., Kurtukian-Nieto, T., Lafriakh, A., Lavaud, F., Fèvre, A. Le, Leray, S., Lühning, J., Lukasik, J., Lynen, U., Müller, W. F., Pawlowski, P., Pietri, S., Rejmund, F., Schwarz, C., Sfienti, C., Simon, H., Trautmann, W., Volant, C., and Yordanov, O.

Subjects
Nuclear Experiment
Abstract

The spallation of $^{56}$Fe in collisions with hydrogen at 1 A GeV has been studied in inverse kinematics with the large-aperture setup SPALADIN at GSI. Coincidences of residues with low-center-of-mass kinetic energy light particles and fragments have been measured allowing the decomposition of the total reaction cross-section into the different possible de-excitation channels. Detailed information on the evolution of these de-excitation channels with excitation energy has also been obtained. The comparison of the data with predictions of several de-excitation models coupled to the INCL4 intra-nuclear cascade model shows that only GEMINI can reasonably account for the bulk of collected results, indicating that in a light system with no compression and little angular momentum, multifragmentation might not be necessary to explain the data., Comment: 4 pages, 5 figures, revised version accepted in Phys. Rev. Lett

Published
2007
Full Text
View/download PDF

7. Spallation Residues in the Reaction 56Fe + p at 0.3, 0.5, 0.75, 1.0 and 1.5 A GeV

Author

Villagrasa-Canton, C., Boudard, A., Ducret, J. -E., Fernandez, B., Leray, S., Volant, C., Armbruster, P., Enqvist, T., Hammache, F., Helariutta, K., Jurado, B., Ricciardi, M. -V., Schmidt, K. -H., Summerer, K., Vives, F., Yordanov, O., Audouin, L., Bacri, C. -O., Ferrant, L., Napolitani, P., Rejmund, F., Stephan, C., Tassan-Got, L., Benlliure, J., Casarejos, E., Fernandez-Ordonez, M., Pereira, J., Czajkowski, S., Karamanis, D., Pravikoff, M., George, J. S., Mewaldt, R. A., Yanasak, N., Wiedenbeck, M., Connell, J. J., Faestermann, T., Heinz, A., and Junghans, A.

Subjects
Nuclear Experiment
Abstract

The spallation residues produced in the bombardment of 56}Fe at 1.5, 1.0, 0.75, 0.5 and 0.3 A GeV on a liquid-hydrogen target have been measured using the reverse kinematics technique and the Fragment Separator at GSI (Darmstadt). This technique has permitted the full identification in charge and mass of all isotopes produced with cross-sections larger than 10^{-2} mb down to Z=8. Their individual production cross-sections and recoil velocities at the five energies are presented. Production cross-sections are compared to previously existing data and to empirical parametric formulas, often used in cosmic-ray astrophysics. The experimental data are also extensively compared to different combinations of intra-nuclear cascade and de-excitation models. It is shown that the yields of the lightest isotopes cannot be accounted for by standard evaporation models. The GEMINI model, which includes an asymmetric fission decay mode, gives an overall good agreement with the data. These experimental data can be directly used for the estimation of composition modifications and damages in materials containing iron in spallation sources. They are also useful for improving high precision cosmic-ray measurements., Comment: Submited to Phys. Rev. C (10/2006)

Published
2006
Full Text
View/download PDF

10. Isotopic production cross sections of the residual nuclei in spallation reactions induced by 136Xe projectiles on proton at 500 A MeV

Author

Giot, L., Alcántara-Núñez, J.A., Benlliure, J., Pérez-Loureiro, D., Audouin, L., Boudard, A., Casarejos, E., Enqvist, T., Ducret, J.E., Fernández-Domínguez, B., Fernández Ordóñez, M., Farget, F., Heinz, A., Henzl, V., Henzlova, D., Kelić-Heil, A., Lafriaskh, A., Leray, S., Napolitani, P., Paradela, C., Pereira, J., Ricciardi, M.V., Stéphan, C., Schmidt, K.-H., Schmitt, C., Tassan-Got, L., Villagrasa, C., Volant, C., and Yordanov, O.

Published
2013
Full Text
View/download PDF

11. Neutron measurements for advanced nuclear systems: The n_TOF project at CERN

Author

Colonna, N., Andriamonje, S., Andrzejewski, J., Audouin, L., Barbagallo, M., Bécares, V., Bečvář, F., Belloni, F., Berthier, B., Berthoumieux, E., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cennini, P., Cerutti, F., Chiaveri, E., Chin, M., Cortés, G., Cortés-Giraldo, M.A., Diakaki, M., Dillmann, I., Domingo-Pardo, C., Duran, I., Fernández-Ordóñez, M., Ferrari, A., Fraval, K., Ganesan, S., Giomataris, I., Giubrone, G., Gómez-Hornillos, M.B., Gonçalves, I.F., González-Romero, E., Gramegna, F., Guerrero, C., Gunsing, F., Harrisopulos, S., Heil, M., Ioannides, K., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Krtička, M., Lebbos, E., Lederer, C., Leeb, H., Losito, R., Lozano, M., Marganiec, J., Marrone, S., Martinez, T., Massimi, C., Mastinu, P.F., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P.M., Mosconi, M., Nolte, R., Papaevangelou, T., Paradela, C., Pavlik, A., Perkowski, J., Plag, R., Plompen, A., Praena, J., Quesada, J.M., Rauscher, T., Reifarth, R., Roman, F., Rubbia, C., Sarmento, R., Tagliente, G., Tain, J.L., Tarrìo, D., Tassan-Got, L., Tlustos, L., Tsinganis, A., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vlachoudis, V., Vlastou, R., Vykydal, Z., Wallner, A., and Weiß, C.

Published
2011
Full Text
View/download PDF

14. Simultaneous measurement of neutron-induced capture and fission reactions at CERN

Author

Guerrero, C., Berthoumieux, E., Cano-Ott, D., Mendoza, E., Andriamonje, S., Andrzejewski, J., Audouin, L., Barbagallo, M., Bécares, V., Bečvář, F., Belloni, F., Billowes, J., Brugger, M., Calviani, M., Calviño, F., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M. A., Diakaki, M., Dillmann, I., Domingo-Pardo, C., Duran, I., Eleftheriadis, C., Fernández-Ordóñez, M., Ferrari, A., Ganesan, S., Giubrone, G., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Gramegna, F., Griesmayer, E., Gunsing, F., Jenkins, D., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Kroll, J., Krtička, M., Lebbos, E., Lederer, C., Leeb, H., Losito, R., Lozano, M., Manousos, A., Marganiec, J., Marrone, S., Martinez, T., Massimi, C., Mastinu, P. F., Meaze, M., Mengoni, A., Milazzo, P. M., Paradela, C., Pavlik, A., Perkowski, J., Plag, R., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Roman, F., Rubbia, C., Sarmento, R., Tagliente, G., Tain, J. L., Tarrío, D., Tassan-Got, L., Tsinganis, A., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vermeullen, M., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weiß, C., and Wright, T.

Published
2012
Full Text
View/download PDF

16. Exclusive measurements on [formula omitted] at 1 A Gev with the SPALADIN setup at GSI

Author

Le Gentil, E., Böhmer, M., Lafriakh, A., Pietri, S., Aumann, T., Bacri, C-O., Benlliure, J., Boudard, A., Casarejos, E., Combet, M., Ducret, J-E., Fernandez-Ordoñez, M., Gernhäuser, R., Johansson, H., Kelić, A., Kezzar, K., Krücken, R., Kurtukian-Nieto, T., Le Fèvre, A., Leray, S., Lukasik, J., Müller, W.F.J., Rejmund, F., Schwarz, C., Sfienti, C., Simon, H., Trautmann, W., Volant, C., and Yordanov, O.

Published
2006
Full Text
View/download PDF

17. Isotopic production cross sections of residual nuclei in the spallation reaction $^{136}$Xe(200$A$ MeV)+ $p$

Author

Paradela, C., Tassan-Got, L., Benlliure, J., Rodríguez-Sánchez, J.L., Audouin, L., Boudard, A., Casarejos, E., Enqvist, T., Ducret, J.E., Farget, F., Fernández-Domínguez, B., Fernández Ordóñez, M., Giot, L., Heinz, A., Henzl, V., Henzlova, D., Kelić-Heil, A., Lafriaskh, A., Leray, S., Napolitani, P., Pereira, J., Pérez-Loureiro, D., Ricciardi, M.V., Stéphan, C., Schmidt, K.H., Schmitt, C., Villagrasa, C., Volant, C., Yordanov, O., 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 sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, and 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)

Subjects
Nuclear Theory, Physics::Accelerator Physics, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

International audience; The residual nuclei produced in the spallation reaction of $^{136}$Xe nuclei at 200A MeV on protons have been studied by measuring the isotopic distributions for the elements from cadmium (Z=48) to cesium (Z=55) by using the fragment separator (FRS) spectrometer at GSI and the inverse kinematics technique. This is one of the few measurements performed at such a low projectile energy, close to the validity limit for intranuclear cascade models such as incl or isabel. The experimental results have been compared to these intranuclear cascade codes coupled to the evaporation code abla. Both code combinations reproduce qualitatively the measured isotopic distributions; however, both underestimate the production of residues with mass numbers between 126 and 134. The measured cross sections are of interest for the planning of future radioactive beam or neutron source facilities.

Published
2017
Full Text
View/download PDF

19. Erratum: Ni 62 (n,γ) and Ni 63 (n,γ) cross sections measured at the n-TOF facility at CERN [Phys. Rev. C (2014) 89 (025810)]

Author

Lederer, C., Berthoumieux, E., Colonna, N., Dressler, R., Guerrero, C., Gunsing, F., Käppeler, F., Kivel, N., Pignatari, M., Reifarth, R., Schumann, D., Wallner, A., Altstadt, S., Andriamonje, S., Andrzejewski, J., Audouin, L., Barbagallo, M., Bécares, V., Bečvář, F., Belloni, F., Berthier, B., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviani, M., Calviño, F., Cano Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Cortés, G., Cortés Giraldo, M. A., Dillmann, I., Domingo Pardo, C., Duran, I., Dzysiuk, N., Eleftheriadis, C., Fernández Ordóñez, M., Ferrari, A., Fraval, K., Ganesan, S., García, A. R., Giubrone, G., Gómez Hornillos, M. B., Gonçalves, I. F., González Romero, E., Gramegna, F., Griesmayer, E., Gurusamy, P., Harrisopulos, S., Heil, M., Ioannides, K., Jenkins, D. G., Jericha, E., Kadi, Y., Karadimos, D., Korschinek, G., Krtička, M., Kroll, J., Langer, C., Lebbos, E., Leeb, H., Leong, L. S., Losito, R., Lozano, M., Manousos, A., Marganiec, J., Marrone, S., Martinez, T., Mastinu, P. F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mirea, M., Mondalaers, W., Paradela, C., Pavlik, A., Perkowski, J., Plag, R., Plompen, A., Praena, J., Quesada, J. M., Rauscher, T., Riego, A., Roman, F., Rubbia, C., Sarmento, R., Schillebeeckx, P., Schmidt, S., Tagliente, G., Tain, J. L., Tarrío, D., Tassan Got, L., Tsinganis, A., Tlustos, L., Valenta, S., Variale, V., Vaz, P., Ventura, A., Vermeulen, M. J., Versaci, R., Vlachoudis, V., Vlastou, R., Ware, T., Weigand, M., Weiß, C., Wright, T. J., Žugec, P., MASSIMI, CRISTIAN, MINGRONE, FEDERICA, VANNINI, GIANNI, Lederer, C., Massimi, C., Berthoumieux, E., Colonna, N., Dressler, R., Guerrero, C., Gunsing, F., Käppeler, F., Kivel, N., Pignatari, M., Reifarth, R., Schumann, D., Wallner, A., Altstadt, S., Andriamonje, S., Andrzejewski, J., Audouin, L., Barbagallo, M., Bécares, V., Bečvář, F., Belloni, F., Berthier, B., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Cortés, G., Cortés-Giraldo, M.A., Dillmann, I., Domingo-Pardo, C., Duran, I., Dzysiuk, N., Eleftheriadis, C., Fernández-Ordóñez, M., Ferrari, A., Fraval, K., Ganesan, S., García, A.R., Giubrone, G., Gómez-Hornillos, M.B., Gonçalves, I.F., González-Romero, E., Gramegna, F., Griesmayer, E., Gurusamy, P., Harrisopulos, S., Heil, M., Ioannides, K., Jenkins, D.G., Jericha, E., Kadi, Y., Karadimos, D., Korschinek, G., Krtička, M., Kroll, J., Langer, C., Lebbos, E., Leeb, H., Leong, L.S., Losito, R., Lozano, M., Manousos, A., Marganiec, J., Marrone, S., Martinez, T., Mastinu, P.F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P.M., Mingrone, F., Mirea, M., Mondalaers, W., Paradela, C., Pavlik, A., Perkowski, J., Plag, R., Plompen, A., Praena, J., Quesada, J.M., Rauscher, T., Riego, A., Roman, F., Rubbia, C., Sarmento, R., Schillebeeckx, P., Schmidt, S., Tagliente, G., Tain, J.L., Tarrío, D., Tassan-Got, L., Tsinganis, A., Tlustos, L., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vermeulen, M.J., Versaci, R., Vlachoudis, V., Vlastou, R., Ware, T., Weigand, M., Weiß, C., Wright, T.J., and Žugec, P.

Subjects
Nuclear and High Energy Physics
Abstract

An error was discovered in the calculation of the statistical spin factor gs , which was used for determining the capture kernels kγ listed in Table II. This error occurred due to a typo in the formula for calculating gs from the resonance parameters provided by SAMMY and affects only the values in Table II. The absolute values for the Maxwellian averaged cross sections are not affected, since those were calculated with the program SAMMY, directly on the basis of the correct parameters. Thus, the astrophysical implications remain unaltered.

Published
2015

20. Isotopic yields of spallation residues produced in $^{136}$Xe-induced reactions on deuterium at 500A MeV

Author

Alcántara-Núñez, J.A., Benlliure, J., Paradela, C., Pérez-Loureiro, C., Rodríguez-Sánchez, J. L., Audouin, L., Boudard, A., Casarejos, E., Enqvist, T., Farget, F., Fernández-Ordóñez, M., Heinz, A., Henzl, V., Henzlova, D., Kelić-Heil, A., Lafriaskh, A., Leray, S., Napolitani, P., Pereira, J., Ricciardi, M. V., Stéphan, C., Schmidt, K.-H., Schmitt, C., Tassan-Got, L., Villagrasa, C., Volant, C., Yordanov, O., 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, Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 25.40.Sc, 24.10.Lx, 25.70.−z, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2015
Full Text
View/download PDF

21. Erratum: $^{62}Ni ( n , γ )$ and $^{63}Ni ( n , γ )$ cross sections measured at the n$\_$TOF facility at CERN [Phys. Rev. C 89 , 025810 (2014)]

Author

Lederer, C., Massimi, C., Reifarth, R., Tlustos, L., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vermeulen, M. J., Versaci, R., Vlachoudis, V., Vlastou, R., Schumann, D., Ware, T., Weigand, M., Weiß, C., Wright, T. J., Žugec, P., Wallner, A., Altstadt, S., Andriamonje, S., Andrzejewski, J., Audouin, L., Barbagallo, M., Bécares, V., Bečvář, F., Berthoumieux, E., Belloni, F., Berthier, B., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Colonna, N., Cerutti, F., Chiaveri, E., Chin, M., Cortés, G., Cortés-Giraldo, M. A., Dillmann, I., Domingo-Pardo, C., Duran, I., Dzysiuk, N., Eleftheriadis, C., Dressler, R., Fernández-Ordóñez, M., Ferrari, A., Fraval, K., Ganesan, S., García, A. R., Giubrone, G., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Gramegna, F., Guerrero, C., Griesmayer, E., Gurusamy, P., Harrisopulos, S., Heil, M., Ioannides, K., Jenkins, D. G., Jericha, E., Kadi, Y., Karadimos, D., Korschinek, G., Gunsing, F., Krtička, M., Kroll, J., Langer, C., Lebbos, E., Leeb, H., Leong, L. S., Losito, R., Lozano, M., Manousos, A., Marganiec, J., Käppeler, F., Marrone, S., Martinez, T., Mastinu, P. F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Kivel, N., Mondalaers, W., Paradela, C., Pavlik, A., Perkowski, J., Plag, R., Plompen, A., Praena, J., Quesada, J. M., Rauscher, T., Riego, A., Pignatari, M., Roman, F., Rubbia, C., Sarmento, R., Schillebeeckx, P., Schmidt, S., Tagliente, G., Tain, J. L., Tarrío, D., Tassan-Got, L., and Tsinganis, A.

Subjects
ddc:530
Published
2015
Full Text
View/download PDF

22. Isotopic yields of spallation residues produced in $^{136}$Xe-induced reactions on deuterium at 500 A MeV

Author

Alcántara-Núñez, J., Benlliure, J., Fernández-Ordóñez, M., Heinz, A., Henzl, V., Henzlova, D., Kelić-Heil, A., Lafriaskh, A., Leray, S., Napolitani, P., Pereira, J., Ricciardi, M. V., Paradela, C., Stéphan, C., Schmidt, K.-H., Schmitt, C., Tassan-Got, L., Villagrasa, C., Volant, C., Yordanov, O., Pérez-Loureiro, C., Rodríguez-Sánchez, J. L., Audouin, L., Boudard, A., Casarejos, E., Enqvist, T., and Farget, F.

Subjects
ddc:530
Published
2015
Full Text
View/download PDF

23. 62Ni(n, g) and 63Ni(n, g) cross sections measured at the n_TOF facility at CERN

Author

Lederer, C., Massimi, C., Reifarth, R., Tlustos, L., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vermeulen, M. J., Versaci, R., Vlachoudis, V., Vlastou, R., Schumann, D., Ware, T., Weigand, M., Weiß, C., Wright, T. J., Žugec, P., Wallner, A., Altstadt, S., Andriamonje, S., Andrzejewski, J., Audouin, L., Barbagallo, M., Bécares, V., Bečvář, F., Berthoumieux, E., Belloni, F., Berthier, B., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Colonna, N., Cerutti, F., Chiaveri, E., Chin, M., Cortés, G., Cortés-Giraldo, M. A., Dillmann, I., Domingo-Pardo, C., Duran, I., Dzysiuk, N., Eleftheriadis, C., Dressler, R., Fernández-Ordóñez, M., Ferrari, A., Fraval, K., Ganesan, S., García, A. R., Giubrone, G., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Gramegna, F., Guerrero, C., Griesmayer, E., Gurusamy, P., Harrisopulos, S., Heil, M., Ioannides, K., Jenkins, D. G., Jericha, E., Kadi, Y., Karadimos, D., Korschinek, G., Gunsing, F., Krtička, M., Kroll, J., Langer, C., Lebbos, E., Leeb, H., Leong, L. S., Losito, R., Lozano, M., Manousos, A., Marganiec, J., Käppeler, F., Marrone, S., Martinez, T., Mastinu, P. F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Kivel, N., Mondalaers, W., Paradela, C., Pavlik, A., Perkowski, J., Plag, R., Plompen, A., Praena, J., Quesada, J. M., Rauscher, T., Riego, A., Pignatari, M., Roman, F., Rubbia, C., Sarmento, R., Schillebeeckx, P., Schmidt, S., Tagliente, G., Tain, J. L., Tarrío, D., Tassan-Got, L., and Tsinganis, A.

Subjects
PRIRODNE ZNANOSTI. Fizika, 62Ni and 63Ni neutron capture cross section, n_TOF, MACS, ddc:530, Nuclear Experiment, NATURAL SCIENCES. Physics
Abstract

The cross section of the 62Ni(n, g) reaction was measured with the time-of-flight technique at the neutron time-of-flight facility n_TOF at CERN. Capture kernels of 42 resonances were analyzed up to 200 keV neutron energy and Maxwellian averaged cross sections (MACS) from kT = 5–100 keV were calculated. With a total uncertainty of 4.5%, the stellar cross section is in excellent agreement with the the KADoNiS compilation at kT = 30 keV, while being systematically lower up to a factor of 1.6 at higher stellar temperatures. The cross section of the 63Ni(n, g) reaction was measured for the first time at n_TOF. We determined unresolved cross sections from 10 to 270 keV with a systematic uncertainty of 17%. These results provide fundamental constraints on s-process production of heavier species, especially the production of Cu in massive stars, which serve as the dominant source of Cu in the solar system.

Published
2014
Full Text
View/download PDF

24. Neutron-induced reactions for the s-process, and the case of Fe and Ni isotopes

Author

Lederer, C., Altstadt, S., Andriamonje, S., Andrzejewski, J., Barbagallo, M., Bécares, V., Bečvář, F., Belloni, F., Berthier, B., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, Damir, Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M. A., Diakaki, M., Dillmann, I., Domingo-Pardo, C., Duran, I., Dressler, R., Dzysiuk, N., Eleftheriadis, C., Fernández-Ordóñez, M., Ferrari, A., Fraval, K., Ganesan, S., Garcìa, A. R., Giubrone, G., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Gramegna, F., Griesmayer, E., Guerrero, C., Gunsing, F., Gurusamy, P., Harrisopulos, S., Heil, M., Ioannides, K., Jenkins, D. G., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Kivel, N., Koehler, P., Kokkoris, M., Korschinek, G., Krtička, M., Kroll, J., Langer, C., Lebbos, E., Leeb, H., Leong, L. S., Losito, R., Lozano, M., Manousos, A., Marganiec, J., Marrone, S., Martìnez, T., Massimi, C., Mastinu, P. F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Mondalaers, W., Paradela, C., Pavlik, A., Perkowski, J., Pignatari, M., Plag, R., Plompen, A., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Riego, A., Roman, F., Rubbia, C., Sarmento, R., Schillebeeckx, P., Schmidt, S., Schumann, D., Sonnabend, K., Tagliente, G., Tain, J. L., Tarrío, D., Tassan-Got, L., Tlustos, L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Versaci, R., Vermeulen, M. J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiß, C., Wright, T. J., and Žugec, Petar

Subjects
s process, Fe isotopes, Ni isotopes, Nuclear Experiment
Abstract

Neutron capture cross sections are the key nuclear physics input to understand nucleosynthesis of the slow neutron capture process (s process). At the neutron time of flight facility n_TOF at CERN neutron capture cross sections of astrophysical interest are measured over a wide energy range. A measurement campaign to determine the stellar (n ; g ) cross sections of Fe and Ni isotopes is currently being pursued. First results on the stellar cross section of 62Ni(n ; g ) confirm previous experimental results. The cross section of the radioactive s-process branching 63Ni was measured for the first time at stellar energies and is about a factor of 2 higher than theoretical predictions. Future facilities and upgrades will allow to access a number of other radioactive nuclides which are crucial for understanding physical conditions of s-process environments.

Published
2012

25. Isotopic yields of spallation residues produced inXe136-induced reactions on deuterium at500AMeV

Author

Alcántara-Núñez, J., primary, Benlliure, J., additional, Paradela, C., additional, Pérez-Loureiro, C., additional, Rodríguez-Sánchez, J. L., additional, Audouin, L., additional, Boudard, A., additional, Casarejos, E., additional, Enqvist, T., additional, Farget, F., additional, Fernández-Ordóñez, M., additional, Heinz, A., additional, Henzl, V., additional, Henzlova, D., additional, Kelić-Heil, A., additional, Lafriaskh, A., additional, Leray, S., additional, Napolitani, P., additional, Pereira, J., additional, Ricciardi, M. V., additional, Stéphan, C., additional, Schmidt, K.-H., additional, Schmitt, C., additional, Tassan-Got, L., additional, Villagrasa, C., additional, Volant, C., additional, and Yordanov, O., additional

Published
2015
Full Text
View/download PDF

27. Production cross sections of heavy neutron-rich nuclei approaching the nucleosynthesisr-process path aroundA=195

Author

Kurtukian-Nieto, T., primary, Benlliure, J., additional, Schmidt, K.-H., additional, Audouin, L., additional, Becker, F., additional, Blank, B., additional, Casarejos, E., additional, Farget, F., additional, Fernández-Ordóñez, M., additional, Giovinazzo, J., additional, Henzlova, D., additional, Jurado, B., additional, Pereira, J., additional, and Yordanov, O., additional

Published
2014
Full Text
View/download PDF

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

Author

Berglöf, Carl, Fernández-Ordóñez, M., Villamarín, D., Bécares, V., González-Romero, E. M., Bournos, Victor, Muñoz-Cobo, José-Luis, Berglöf, Carl, Fernández-Ordóñez, M., Villamarín, D., Bécares, V., González-Romero, E. M., Bournos, Victor, and Muñoz-Cobo, José-Luis

Abstract

Neutron noise measurements based on the Rossi-alpha and Feynman-alpha methodologies have been performed in a heterogeneous subcritical system. It is shown that the traditional single alpha-mode formulations of the Rossi-alpha and Feynman-alpha 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-alpha method, whereas only two could be obtained using the Feynman-alpha method. In the Feynman-alpha 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-alpha and Feynman-alpha methods observed in this study are pointed out., QC 20100621 Uppdaterad från submitted till published (20110315).

Published
2011
Full Text
View/download PDF

29. The Neutron Time-Of-Flight Facility ṉTOF At CERN: Phase II

Author

Gunsing, F., Andriamonje, S., Andrzejewski, J., Audouin, L., Bécares, V., Bečvář, F., Belloni, F., Berthier, B., Berthoumieux, E., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cennini, P., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M. A., Dillmann, I., Domingo-Pardo, C., Duran, I., Fernández-Ordóñez, M., Ferrari, A., Fraval, K., Ganesan, S., Giomataris, I., Giubrone, G., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Gramegna, F., Guerrero, C., Harrisopulos, S., Heil, M., Ioannides, K., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Krtička, M., Lebbos, E., Lederer, C., Leeb, H., Losito, R., Lozano, M., Marganiec, J., Marrone, S., Martinez, T., Massimi, C., Mastinu, P. F., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mosconi, M., Nolte, R., Papaevangelou, T., Paradela, C., Pavlik, A., Perkowski, J., Plag, R., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Roman, F., Rubbia, C., Sarmento, R., Tagliente, G., Tain, J. L., Tarrìo, D., Tassan-Got, L., Tlustos, L., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vlachoudis, V., Vlastou, R., Vykydal, Z., Wallner, A., Weir, C., McDaniel, Floyd D., Doyle, Barney L., Gunsing, F., Andriamonje, S., Andrzejewski, J., Audouin, L., Bécares, V., Bečvář, F., Belloni, F., Berthier, B., Berthoumieux, E., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cennini, P., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M. A., Dillmann, I., Domingo-Pardo, C., Duran, I., Fernández-Ordóñez, M., Ferrari, A., Fraval, K., Ganesan, S., Giomataris, I., Giubrone, G., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Gramegna, F., Guerrero, C., Harrisopulos, S., Heil, M., Ioannides, K., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Krtička, M., Lebbos, E., Lederer, C., Leeb, H., Losito, R., Lozano, M., Marganiec, J., Marrone, S., Martinez, T., Massimi, C., Mastinu, P. F., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mosconi, M., Nolte, R., Papaevangelou, T., Paradela, C., Pavlik, A., Perkowski, J., Plag, R., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Roman, F., Rubbia, C., Sarmento, R., Tagliente, G., Tain, J. L., Tarrìo, D., Tassan-Got, L., Tlustos, L., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vlachoudis, V., Vlastou, R., Vykydal, Z., Wallner, A., Weir, C., McDaniel, Floyd D., and Doyle, Barney L.

Abstract

Neutron‐induced reactions are studied at the neutron time‐of‐flight facility n_TOF at CERN. The facility uses 6∼ns wide pulses of 20 GeV/c protons impinging on a lead spallation target. The large neutron energy range and the high instantaneous neutron flux combined with high resolution are among the key characteristics of the facility. After a first phase of data taking during the period 2001–2004, the facility has been refurbished with an upgraded spallation target and cooling system for a second phase of data taking which started in 2009. Since 2010, the experimental area at 185 m where the neutron beam arrives, has been modified into a worksector of type A, allowing the extension of the physics program to include neutron‐induced reactions on radioactive isotopes.

Published
2011

30. Spatial and Source Multiplication Effects on the Area Ratio Reactivity Determination Method in a Strongly Heterogeneous Subcritical System

Author

Berglöf, Carl, Fernández-Ordóñez, M., Villamarín, D., Bécares, V., González-Romero, E. M., Bournos, Victor, Serafimovich, Ivan, Mazanik, Sergei, Fokov, Yurii, Berglöf, Carl, Fernández-Ordóñez, M., Villamarín, D., Bécares, V., González-Romero, E. M., Bournos, Victor, Serafimovich, Ivan, Mazanik, Sergei, and Fokov, Yurii

Abstract

The area ratio method of Sjostrand is generally considered one of the most reliable reactivity determination methods and thus is a major candidate for off-line calibration purposes in future accelerator-driven systems for high-level waste incineration. In this work, the Sjostrand area ratio method has been evaluated experimentally under thorough conditions in the strongly heterogeneous subcritical facility YALINA-Booster. Both strengths and weaknesses of the method have been identified. Most surprisingly, it has been found that the area ratio reactivity estimates may differ a factor of 2 depending on detector position. It is also shown that this strong spatial dependence can be explained based on a simple two-region point-kinetics model and corrected by means of correction factors obtained through Monte Carlo simulations. A new Monte Carlo correction method is proposed that includes, at the same time, the spatial disturbance and the effective delayed neutron fraction. In that way, the value of the effective multiplication factor is obtained from the measured dollar reactivity without the need of calculating the effective delayed neutron fraction explicitly, and thereby, the delayed neutron transport is performed only once. Further, it has been found that the Sjostrand area ratio method is not sensitive to perturbations of the source multiplication factor., QC 20100621. Uppdaterad från accepted till published (20101203).

Published
2010
Full Text
View/download PDF

31. Summary of conclusions from the EUROTRANS reactivity monitoring experiments at YALINA-booster

Author

Berglöf, Carl, Fernández-Ordóñez, M., Villamarín, D., Bécares, V., González-Romero, E., Bournos, V., Serafimovich, I., Mazanik, S., Fokov, Y., Muñoz-Cobo, J. -L, Berglöf, Carl, Fernández-Ordóñez, M., Villamarín, D., Bécares, V., González-Romero, E., Bournos, V., Serafimovich, I., Mazanik, S., Fokov, Y., and Muñoz-Cobo, J. -L

Abstract

QC 20140905

Published
2010

32. Reactivity monitoring with imposed beam trips and pulsed mode detectors in the subcritical experiment YALINA-Booster

Author

Bécares-Palacios, V., Fernández-Ordóñez, M., Villamarín, D., González-Romero, E. M., Berglöf, Carl, Bournos, V., Mazanik, S., Bécares-Palacios, V., Fernández-Ordóñez, M., Villamarín, D., González-Romero, E. M., Berglöf, Carl, Bournos, V., and Mazanik, S.

Abstract

Reactivity monitoring is one of the urgent problems that require a solution in order to achieve a license for a future full-scale ADS. As a part of the EUROTRANS experiments at the YALINA-Booster facility, presented in this conference, a set of measurements with imposed beam-trips has been performed. Traditionally, the source jerk method has been used in subcritical systems to obtain the reactivity by comparing the total neutron flux before the neutron source removal to the semi-stable delayed neutron flux after the source removal. The deuterium-tritium neutron source of the YALINA-Booster facility can, in addition to pulsed mode operation, operate with continuous beam with short imposed millisecond-scale interruptions, thus providing the possibility to monitor the reactivity at each beam trip in the source jerk manner. In order to test the validity of the beam-trip reactivity values determined by using detectors operating in current-mode (also presented in this conference), the reactivity values of the YALINA-Booster assembly obtained through the beam-trip technique using pulsed-mode detectors is presented in this work. In these experiments, a beam-trip frequency of 1 Hz and an interruption time of ∼20 ms have been chosen and two different core loadings with effective multiplication factor around 0.95 have been investigated. These two different loadings with close to equal reactivity but different source multiplication characteristics make it possible to explore the effect of the different source multiplications. In addition, the response of the imposed beam-trip reactivity monitoring technique to reactivity insertions and removals has been studied through control rod movements. Experimental data from fission chambers have been acquired from all three zones of the core: the fast booster zone, the thermal zone and the reflector., QC 20140930

Published
2009

33. Current-to-flux experimental results in the YALINA-Booster subcritical assembly

Author

Villamarín, D., Fernández-Ordóñez, M., Bécares, V., González-Romero, E. M., Berglöf, Carl, Villamarín, D., Fernández-Ordóñez, M., Bécares, V., González-Romero, E. M., and Berglöf, Carl

Abstract

As a part of the IP-EUROTRANS experimental program at YALINA-Booster, presented in this conference, a set of measurements concerning the current-to-flux techniques has been performed. In a subcritical assembly coupled to an accelerator operating in continuous mode, the power of the reactor is related to the accelerator beam current and the external neutron source strength. It is generally assumed that by monitoring the ratio between the accelerator beam current and the neutron source intensity as well as the ratio between the neutron source intensity and the core power, any change in the system can be detected. With this methodology, changes in the system caused by reactivity transients can be isolated. However, it has been observed that this is only true for transients in the time scale of seconds. At CIEMAT, an acquisition system capable of monitoring the core power, the accelerator beam current and the neutron source intensity in the millisecond scale has been developed. It has been observed that, in these short time ranges, the proportionality relationship between these three quantities is not always fulfilled., QC 20140929

Published
2009

34. Neutron noise measurements in the YALINA-Booster experiments

Author

Berglöf, Carl, Fernández-Ordóñez, M., Villamarín, D., Bécares, V., González-Romero, E. M., Bournos, V., Serafimovich, I., Mazanik, S., Kiyavitskaya, H., Berglöf, Carl, Fernández-Ordóñez, M., Villamarín, D., Bécares, V., González-Romero, E. M., Bournos, V., Serafimovich, I., Mazanik, S., and Kiyavitskaya, H.

Abstract

In addition to the pulsed neutron source measurements and the continuous source beam-trip and current-to-flux measurements performed in the YALINA-Booster facility, also presented in this conference, a set of neutron noise measurements has been performed to achieve a complete characterization of the core. The neutron noise measurements have been performed in three different configurations covering a subcriticality range from 0.85 to 0.977. The Rossi-α neutron noise technique has been applied to detector counts from two channels in the thermal part of the core. The Rossi-α results are compared to the experimental prompt neutron decay constants obtained from the pulsed neutron source measurements. A first approach fitting procedure reveals a need of three exponentials to describe the Rossi-α histograms. It has been found that at deep subcriticality, the fundamental mode decay may coincide with or be close to a higher eigenmode, thus making it difficult to determine the prompt neutron decay constant correctly., QC 20140926

Published
2009

35. Pulsed neutron source reference measurements in the subcritical experiment YALINA-Booster

Author

Berglöf, Carl, Fernández-Ordóñez, M., Villamarín, D., Bécares, V., González-Romero, E. M., Bournos, V., Serafimovich, I., Mazanik, S., Fokov, Y., Kiyavitskaya, H., Berglöf, Carl, Fernández-Ordóñez, M., Villamarín, D., Bécares, V., González-Romero, E. M., Bournos, V., Serafimovich, I., Mazanik, S., Fokov, Y., and Kiyavitskaya, H.

Abstract

In support of an online reactivity monitoring experiment, also presented in this conference, this work presents the reactivity calibration measurements performed with a pulsed neutron source in the coupled fast-thermal subcritical facility YALINA-Booster. These experiments reveal the complexity of experimentally obtaining a global reactivity from a highly heterogeneous core. Moreover, the effect of varying the source multiplication at constant reactivity on the area ratio technique is explored. It is found that the reactivity obtained with the area ratio technique carry strong spatial dependence, but it can be handled by calculated correction factors. On the other hand the method is showed not to be sensitive to changes in the source multiplication. It is also shown that the prompt neutron decay constant does not vary strongly over the core except at deep subcritical states., QC 20141009

Published
2009

36. Present status and future programs of the n_TOF experiment

Author

Chiaveri, E., primary, Calviani, M., additional, Vlachoudis, V., additional, Weis, C., additional, Andriamonje, S., additional, Andrzejewski, J., additional, Audouin, L., additional, Avrigeanu, F., additional, Barbagallo, M., additional, Bécares, V., additional, Beĉvář, F., additional, Belloni, F., additional, Berthoumieux, E., additional, Billowes, J., additional, Boccone, V., additional, Brugger, M., additional, Calviño, F., additional, Cano-Ott, D., additional, Carrapiço, C., additional, Cerutti, F., additional, Chin, M., additional, Colonna, N., additional, Cortés, G., additional, Cortés-Giraldo, M.A., additional, Diakaki, M., additional, Dillmann, I., additional, Domingo-Pardo, C., additional, Duran, I., additional, Dzysiuk, N., additional, Eleftheriadis, C., additional, Fernández-Ordóñez, M., additional, Ferrari, A., additional, Fraval, K., additional, Ganesan, S., additional, Giubrone, G., additional, Gómez-Hornillos, M.B., additional, Gonçalves, I.F., additional, González-Romero, E., additional, Gramegna, F., additional, Griesmayer, E., additional, Guerrero, C., additional, Gunsing, F., additional, Heil, M., additional, Jenkins, D.G., additional, Jericha, E., additional, Kadi, Y., additional, Käppeler, F., additional, Karadimos, D., additional, Kokkoris, M., additional, Krtička, M., additional, Kroll, J., additional, Lederer, C., additional, Leeb, H., additional, Leong, L.S., additional, Losito, R., additional, Lozano, M., additional, Manousos, A., additional, Marganiec, J., additional, Martinez, T., additional, Massimi, C., additional, Mastinu, P.F., additional, Mastromarco, M., additional, Meaze, M., additional, Mendoza, E., additional, Mengoni, A., additional, Milazzo, P.M., additional, Mirea, M., additional, Paradela, C., additional, Pavlik, A., additional, Perkowski, J., additional, Praena, J., additional, Quesada, J.M., additional, Rauscher, T., additional, Reifarth, R., additional, Riego, A., additional, Roman, F., additional, Rubbia, C., additional, Sarmento, R., additional, Tagliente, G., additional, Tain, J.L., additional, Tarrio, D., additional, Tassan-Got, L., additional, Tsinganis, A., additional, Valenta, S., additional, Vannini, G., additional, Variale, V., additional, Vaz, P., additional, Ventura, A., additional, Vermeulen, M.J., additional, Versaci, R., additional, Vlastou, R., additional, Wallner, A., additional, Ware, T., additional, and Wright, T.J., additional

Published
2012
Full Text
View/download PDF

38. Investigating the intra-nuclear cascade process using the reaction136Xe on deuterium at 500 AMeV

Author

Alcántara-Núñez, J.A., primary, Benlliure, J., additional, Pérez-Loureiro, D., additional, Armbruster, P., additional, Audouin, L., additional, Bernas, M., additional, Boudard, A., additional, Casarejos, E., additional, Enqvist, T., additional, Fernández-Domínguez, B., additional, Fernández, Ordóñez M., additional, Heinz, A., additional, Henzl, V., additional, Henzlova, D., additional, Kelić, A., additional, Lafriaskh, A., additional, Leray, S., additional, Napolitani, P., additional, Pereira, J., additional, Pleskač, R., additional, Rejmund, F., additional, Ricciardi, M.V., additional, Stéphan, C., additional, Schmidt, K.-H., additional, Schmitt, C., additional, Tassan-Got, L., additional, Villagrasa, C., additional, Volant, C., additional, and Yordanov, O., additional

Published
2010
Full Text
View/download PDF

39. Residual Nuclei Production in the reaction [sup 136]Xe+ deuterium at 500 A MeV

Author

Alcántara-Núñez, J. A., primary, Benlliure, J., additional, Pérez-Loureiro, D., additional, Armbruster, P., additional, Audouin, L., additional, Bernas, M., additional, Boudard, A., additional, Casarejos, E., additional, Enqvist, T., additional, Fernández-Domínguez, B., additional, Fernández Ordóñez, M., additional, Heinz, A., additional, Henzl, V., additional, Henzlova, D., additional, Kelić, A., additional, Lafriaskh, A., additional, Leray, S., additional, Napolitani, P., additional, Pereira, J., additional, Pleskač, R., additional, Rejmund, F., additional, Ricciardi, M. V., additional, Stéphan, C., additional, Schmidt, K.-H., additional, Schmitt, C., additional, Tassan-Got, L., additional, Villagrasa, C., additional, Volant, C., additional, Yordanov, O., additional, Caballero, J. A., additional, Alonso, C. E., additional, Andrés, M. V., additional, García Ramos, J. E., additional, and Pérez-Bernal, F., additional

Published
2010
Full Text
View/download PDF

40. Production of medium-mass neutron-rich nuclei in reactions induced byXe136projectiles at 1AGeV on a beryllium target

Author

Benlliure, J., primary, Fernández-Ordóñez, M., additional, Audouin, L., additional, Boudard, A., additional, Casarejos, E., additional, Ducret, J. E., additional, Enqvist, T., additional, Heinz, A., additional, Henzlova, D., additional, Henzl, V., additional, Kelic, A., additional, Leray, S., additional, Napolitani, P., additional, Pereira, J., additional, Rejmund, F., additional, Ricciardi, M. V., additional, Schmidt, K.-H., additional, Schmitt, C., additional, Stéphan, C., additional, Tassan-Got, L., additional, Volant, C., additional, Villagrasa, C., additional, and Yordanov, O., additional

Published
2008
Full Text
View/download PDF

41. New national and regional bryophyte records, 5.

Author

Blockeel, T. L., primary, Duckett, J. G., additional, Fernández Ordóñez, M. C., additional, Hébrard, J.-P., additional, Matcham, H. W., additional, Porley, R. D., additional, Ochyra, R., additional, Bednarek-Ochyra, H., additional, Soldán, Z., additional, and Townsend, C. C., additional

Published
2002
Full Text
View/download PDF

42. Neutron induced reactions for the s process, and the case of Fe and Ni isotopes

Author

Lederer, C., Altstadt, S., Andriamonje, S., Andrzejewski, J., Audouin, L., Barbagallo, M., Bécares, V., Bečvář, F., Belloni, F., Berthier, B., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Marco Calviani, Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M. A., Diakaki, M., Dillmann, I., Domingo-Pardo, C., Duran, I., Dressler, R., Dzysiuk, N., Eleftheriadis, C., Fernández-Ordóñez, M., Ferrari, A., Fraval, K., Ganesan, S., García, A. R., Giubrone, G., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Gramegna, F., Griesmayer, E., Guerrero, C., Gunsing, F., Gurusamy, P., Harrisopulos, S., Heil, M., Ioannides, K., Jenkins, D. G., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Kivel, N., Koehler, P., Kokkoris, M., Korschinek, G., Krtička, M., Kroll, J., Langer, C., Lebbos, E., Leeb, H., Leong, L. S., Losito, R., Lozano, M., Manousos, A., Marganiec, J., Marrone, S., Martínez, T., Massimi, C., Mastinu, P. F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Mondalaers, W., Paradela, C., Pavlik, A., Perkowski, J., Pignatari, M., Plag, R., Plompen, A., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Riego, A., Roman, F., Rubbia, C., Sarmento, R., Schillebeeckx, P., Schmidt, S., Schumann, D., Sonnabend, K., Tagliente, G., Tain, J. L., Tarrío, D., Tassan-Got, L., Tlustos, L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Versaci, R., Vermeulen, M. J., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiß, C., Wright, T. J., and Žugec, P.

43. Measurement of the $^{241}$Am neutron capture cross section at the n_TOF facility at CERN

Author

Mendoza, E., Cano-Ott, D., Altstadt, S., Andriamonje, S., Andrzejewski, J., Audouin, L., Balibrea, J., Bécares, V., Barbagallo, M., Bečvář, F., Belloni, F., Berthier, B., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviño, F., Calviani, M., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M. A., Diakaki, M., Dillmann, I., Domingo-Pardo, C., Durán, I., Dzysiuk, N., Eleftheriadis, C., Fernández-Ordóñez, M., Ferrari, A., Fraval, K., Furman, V., Gómez-Hornillos, M. B., Ganesan, S., García, A. R., Giubrone, G., Gonçalves, I. F., González, E., Goverdovski, A., Gramegna, F., Griesmayer, E., Guerrero, C., Gunsing, F., Gurusamy, P., Heftrich, T., Heinitz, S., Hernández-Prieto, A., Heyse, J., Jenkins, D. G., Jericha, E., Käppeler, F., Kadi, Y., Karadimos, D., Katabuchi, T., Ketlerov, V., Khryachkov, V., Koehler, P., Kokkoris, M., Kroll, J., Krtička, M., Lampoudis, C., Langer, C., Leal-Cidoncha, E., Lederer, C., Leeb, H., Leong, L. S., Lerendegui-Marco, J., Licata, M., Losito, R., Manousos, A., Marganiec, J., Martínez, T., Massimi, C., Mastinu, P., Mastromarco, M., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Mondelaers, W., Paradela, C., Pavlik, A., Perkowski, J., Plompen, A. J. M., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Riego-Perez, A., Robles, M., Roman, F., Rubbia, C., Ryan, J. A., Sabaté-Gilarte, M., Sarmento, R., Saxena, A., Schillebeeckx, P., Schmidt, S., Schumann, D., Sedyshev, P., Tagliente, G., Tain, J. L., Tarifeño-Saldivia, A., Tarrío, D., Tassan-Got, L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vermeulen, M. J., Versaci, R., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiss, C., Wright, T., and Ž Ugec, P.

Subjects
7. Clean energy

44. Measurement of the 241Am neutron capture cross section at the n_TOF facility at CERN

Author

Mendoza, E., Cano-Ott, D., Altstadt, S., Andriamonje, S., Andrzejewski, J., Audouin, L., Balibrea, J., Bécares, V., Barbagallo, M., Bečvář, F., Belloni, F., Berthier, B., Berthoumieux, E., Billowes, J., Boccone, V., Bosnar, D., Brugger, M., Calviño, F., Calviani, M., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M. A., Diakaki, M., Dillmann, I., Domingo-Pardo, C., Durán, I., Dzysiuk, N., Eleftheriadis, C., Fernández-Ordóñez, M., Ferrari, A., Fraval, K., Furman, V., Gómez-Hornillos, M. B., Ganesan, S., García, A. R., Giubrone, G., Gonçalves, I. F., González, E., Goverdovski, A., Gramegna, F., Griesmayer, E., Guerrero, C., Gunsing, F., Gurusamy, P., Heftrich, T., Heinitz, S., Hernández-Prieto, A., Heyse, J., Jenkins, D. G., Jericha, E., Käppeler, F., Kadi, Y., Karadimos, D., Katabuchi, T., Ketlerov, V., Khryachkov, V., Koehler, P., Kokkoris, M., Kroll, J., Krtička, M., Lampoudis, C., Langer, C., Leal-Cidoncha, E., Lederer, C., Leeb, H., Leong, L. S., Lerendegui-Marco, J., Licata, M., Losito, R., Manousos, A., Marganiec, J., Martínez, T., Massimi, C., Mastinu, P., Mastromarco, M., Mengoni, A., Milazzo, P. M., Mingrone, F., Mirea, M., Mondelaers, W., Paradela, C., Pavlik, A., Perkowski, J., Plompen, A. J. M., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Riego-Perez, A., Robles, M., Roman, F., Rubbia, C., Ryan, J. A., Sabaté-Gilarte, M., Sarmento, R., Saxena, A., Schillebeeckx, P., Schmidt, S., Schumann, D., Sedyshev, P., Tagliente, G., Tain, J. L., Tarifeño-Saldivia, A., Tarrío, D., Tassan-Got, L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vermeulen, M. J., Versaci, R., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weigand, M., Weiss, C., Wright, T., and Žugec, P.

Subjects
7. Clean energy

45. Measurement of the 24,25,26Mg(n, γ) reaction cross-section at n-TOF

Author

Massimi, C., Andriamonje, S., Andrzejewski, J., Audouin, L., Bécares, V., Bečvář, F., Belloni, F., Berthier, B., Berthoumieux, E., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M. A., Dillmann, I., Domingo-Pardo, C., Duran, I., Fernández-Ordóñez, M., Ferrari, A., Fraval, K., Ganesan, S., Giubrone, G., Gómez-Hornillos, M. B., Isabel Gonçalves, González-Romero, E., Gramegna, F., Guerrero, C., Gunsing, F., Harrisopulos, S., Heil, M., Ioannides, K., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Krti Čka, M., Lebbos, E., Lederer, C., Leeb, H., Losito, R., Lozano, M., Marganiec, J., Marrone, S., Martinez, T., Mastinu, P. F., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Paradela, C., Pavlik, A., Perkowski, J., Plag, R., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Roman, F., Rubbia, C., Sarmento, R., Tagliente, G., Tain, J. L., Tarrío, D., Tassan-Got, L., Tlustos, L., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vlachoudis, V., Vlastou, R., Wallner, A., and Weiß, C.

46. Measurement of the 24,25,26Mg(n, γ) reaction cross-section at n-TOF

Author

Massimi, C., Andriamonje, S., Andrzejewski, J., Audouin, L., Bécares, V., Bečvář, F., Belloni, F., Berthier, B., Berthoumieux, E., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M. A., Dillmann, I., Domingo-Pardo, C., Duran, I., Fernández-Ordóñez, M., Ferrari, A., Fraval, K., Ganesan, S., Giubrone, G., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Gramegna, F., Carlos Guerrero, Gunsing, F., Harrisopulos, S., Heil, M., Ioannides, K., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Krti Čka, M., Lebbos, E., Lederer, C., Leeb, H., Losito, R., Lozano, M., Marganiec, J., Marrone, S., Martinez, T., Mastinu, P. F., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Paradela, C., Pavlik, A., Perkowski, J., Plag, R., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Roman, F., Rubbia, C., Sarmento, R., Tagliente, G., Tain, J. L., Tarrío, D., Tassan-Got, L., Tlustos, L., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vlachoudis, V., Vlastou, R., Wallner, A., and Weiß, C.

47. New measurement of the astrophysically important reaction 62Ni(n,γ) at n-TOF

Author

Lederer, C., Andriamonje, S., Andrzejewski, J., Audouin, L., Bécares, V., Bečvář, F., Belloni, F., Berthier, B., Berthoumieux, E., Brugger, M., Calviani, M., Calviño, F., Cano-Ott, D., Carrapiço, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortés, G., Cortés-Giraldo, M. A., Dillmann, I., Domingo-Pardo, C., Duran, I., Fernández-Ordóñez, M., Ferrari, A., Ganesan, S., Giubrone, G., Gómez-Hornillos, M. B., Gonçalves, I. F., González-Romero, E., Gramegna, F., Guerrero, C., Gunsing, F., Harrisopulos, S., Heil, M., Ioannides, K., Jericha, E., Kadi, Y., Käppeler, F., Karadimos, D., Krti Čka, M., Lebbos, E., Leeb, H., Losito, R., Lozano, M., Marganiec, J., Marrone, S., Martinez, T., Massimi, C., Mastinu, P. F., AKM Moinul Haque Meaze, Mendoza, E., Mengoni, A., Milazzo, P. M., Paradela, C., Pavlik, A., Perkowski, J., Plag, R., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Roman, F., Rubbia, C., Sarmento, R., Tagliente, G., Tain, J. L., Tarrío, D., Tassan-Got, L., Tlustos, L., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vlachoudis, V., Vlastou, R., Wallner, A., and Weiß, C.

49. Residual Nuclei Production in the reaction 136Xe+ deuterium at 500 A MeV.

Author

Alcántara-Núñez, J. A., Benlliure, J., Pérez-Loureiro, D., Armbruster, P., Audouin, L., Bernas, M., Boudard, A., Casarejos, E., Enqvist, T., Fernández-Domínguez, B., Fernández Ordóñez, M., Heinz, A., Henzl, V., Henzlova, D., Kelic, A., Lafriaskh, A., Leray, S., Napolitani, P., Pereira, J., and Pleskacˇ, R.

Subjects
XENON, KINEMATICS, SPALLATION (Nuclear physics), NUCLEAR reactions, DEUTERIUM
Abstract

More than six hundred nuclei produced in the fragmentation of 136Xe projectiles at 500 A MeV on a liquid deuterium target were identified using inverse kinematics at the GSI Fragment Separator (FRS). These data are relevant for understanding of spallation reactions. [ABSTRACT FROM AUTHOR]

Published
2010
Full Text
View/download PDF

50. Measurement of the 241Am neutron capture cross section at the n_TOF facility at CERN

Author

Mendoza E., Cano-Ott D., Altstadt S., Andriamonje S., Andrzejewski J., Audouin L., Balibrea J., Bécares V., Barbagallo M., Bečvář F., Belloni F., Berthier B., Berthoumieux E., Billowes J., Boccone V., Bosnar D., Brugger M., Calviño F., Calviani M., Carrapiço C., Cerutti F., Chiaveri E., Chin M., Colonna N., Cortés G., Cortés-Giraldo M.A., Diakaki M., Dillmann I., Domingo-Pardo C., Durán I., Dzysiuk N., Eleftheriadis C., Fernández-Ordóñez M., Ferrari A., Fraval K., Furman V., Gómez-Hornillos M.B., Ganesan S., García A.R., Giubrone G., Gonçalves I.F., González E., Goverdovski A., Gramegna F., Griesmayer E., Guerrero C., Gunsing F., Gurusamy P., Heftrich T., Heinitz S., Hernández-Prieto A., Heyse J., Jenkins D.G., Jericha E., Käppeler F., Kadi Y., Karadimos D., Katabuchi T., Ketlerov V., Khryachkov V., Koehler P., Kokkoris M., Kroll J., Krtička M., Lampoudis C., Langer C., Leal-Cidoncha E., Lederer C., Leeb H., Leong L.S., Lerendegui-Marco J., Licata M., Losito R., Manousos A., Marganiec J., Martínez T., Massimi C., Mastinu P., Mastromarco M., Mengoni A., Milazzo P.M., Mingrone F., Mirea M., Mondelaers W., Paradela C., Pavlik A., Perkowski J., Plompen A.J.M., Praena J., Quesada J.M., Rauscher T., Reifarth R., Riego-Perez A., Robles M., Roman F., Rubbia C., Ryan J.A., Sabaté-Gilarte M., Sarmento R., Saxena A., Schillebeeckx P., Schmidt S., Schumann D., Sedyshev P., Tagliente G., Tain J.L., Tarifeño-Saldivia A., Tarrío D., Tassan-Got L., Tsinganis A., Valenta S., Vannini G., Variale V., Vaz P., Ventura A., Vermeulen M.J., Versaci R., Vlachoudis V., Vlastou R., Wallner A., Ware T., Weigand M., Weiss C., Wright T., and Žugec P.

Subjects
Physics, QC1-999
Abstract

New neutron cross section measurements of minor actinides have been performed recently in order to reduce the uncertainties in the evaluated data, which is important for the design of advanced nuclear reactors and, in particular, for determining their performance in the transmutation of nuclear waste. We have measured the 241Am(n,γ) cross section at the n_TOF facility between 0.2 eV and 10 keV with a BaF2 Total Absorption Calorimeter, and the analysis of the measurement has been recently concluded. Our results are in reasonable agreement below 20 eV with the ones published by C. Lampoudis et al. in 2013, who reported a 22% larger capture cross section up to 110 eV compared to experimental and evaluated data published before. Our results also indicate that the 241Am(n,γ) cross section is underestimated in the present evaluated libraries between 20 eV and 2 keV by 25%, on average, and up to 35% for certain evaluations and energy ranges.

Published
2017
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results