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1. 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

2. 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

3. 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. Becvar, F. Belloni, E. Berthoumieux, S. Bisterzo, F. Calvino, M. Calviani, D. Cano-Ott, R. Capote, C. Carrapico, 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, R. Gallino, I. Goncalves, E. Gonzalez-Romero, F. Gramegna, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, E. Jericha, F. Kappeler, Y. Kadi, D. Karadimos, D. Karamanis, M. Kerveno, P. Koehler, E. Kossionides, M. Krticka, C. Lamboudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martinez, 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, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santos, L. Sarchiapone, I. Savvidis, C. Stephan, 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
Subjects: Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Physics::Accelerator Physics, Nuclear Experiment, Astrophysics, lcsh:Atomic physics. Constitution and properties of matter, r-process, lcsh:QC170-197
Abstract: 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 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 gives an overview on the astrophysical program made at n_TOF facility, the results and the implications will be considered.
Published: 2009

4. 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

5. 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

6. Neutron-induced fission cross section of U-234 measured at the CERN n_TOF facility

Author: D. Karadimos, R. Vlastou, K. Ioannidis, P. Demetriou, M. Diakaki, V. Vlachoudis, P. Pavlopoulos, V. Konovalov, U. Abbondanno, G. Aerts, H. Alvarez, F. Alvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Becvar, E. Berthoumieux, F. Calvino, D. Cano Ott, R. Capote, A. C. de, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, S. David, R. Dolfini, C. Domingo Pardo, A. Dorochenko, W. Dridi, I. Duran, C. Eleftheriadis, M. Embid Segura, L. Ferrant, A. Ferrari, R. Ferreira Marques, L. Fitzpatrick, H. Frais Koelbl, K. Fuji, W. Furman, I. Goncalves, R. Gallino, P. Cennini, 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. Kaeppeler, D. Karamanis, M. Kerveno, V. Ketlerov, P. Koehler, D. Kolokolov, M. Krticka, C. Lamboudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, L. Marques, S. Marrone, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O'Brien, M. Oshima, J. Pancin, C. Papadopoulos, C. Paradela, N. Patronis, A. Pavlik, L. Perrot, 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, M. Sedysheva, K. Stamoulis, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan Got, L. Tavora, R. Terlizzi, A. Tsinganis, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, F. Voss, H. Wendler, M. Wiescher, K. Wisshak, MASSIMI, CRISTIAN, VANNINI, GIANNI, D. Karadimo, R. Vlastou, K. Ioannidi, P. Demetriou, M. Diakaki, V. Vlachoudi, P. Pavlopoulo, V. Konovalov, 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, D. Cano-Ott, R. Capote, A. C. de, V. Chepel, E. Chiaveri, N. Colonna, G. Corte, A. Couture, J. Cox, S. David, R. Dolfini, C. Domingo-Pardo, A. Dorochenko, W. Dridi, I. Duran, C. Eleftheriadi, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marque, L. Fitzpatrick, H. Frais-Koelbl, K. Fuji, W. Furman, I. Goncalve, R. Gallino, P. Cennini, 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. Kaeppeler, D. Karamani, M. Kerveno, V. Ketlerov, P. Koehler, D. Kolokolov, M. Krticka, C. Lamboudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, L. Marque, S. Marrone, 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. Papadopoulo, C. Paradela, N. Patroni, A. Pavlik, L. Perrot, 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, M. Sedysheva, K. Stamouli, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan-Got, L. Tavora, R. Terlizzi, A. Tsingani, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, F. Vo, H. Wendler, M. Wiescher, and K. Wisshak
Subjects: MINOR ACTINIDES TRANSMUTATIONS, Nuclear Experiment, NEUTRON TIME OF FLIGHT, NEUTRON INDUCED FISSION
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.
Published: 2014

7. Direct determination of two-pion correlations for pp→ 2π+2π− annihilation at rest

Author: Ioannis Evangelou, O. Wigger, L. Sakeliou, Per Carlson, Panagiotis Kokkas, W. Fetscher, F. Henry-Couannier, Ch Yèche, Sotirios Vlachos, G. Chardin, V.E. Markushin, M.B. Chertok, G. Backenstoss, Danilo Zavrtanik, A. Angelopoulos, H.-J. Gerber, M.P. Locher, K. Jon-And, L. Tauscher, D. Garreta, P. Weber, J. Pinto da Cunha, C. Thibault, P. Sanders, E. Machado, C. Eleftheriadis, Nikolaos Manthos, R. Gamet, A. Go, R. Le Gac, A. Liolios, O. Behnke, A.J.P.L. Policarpo, Mats Danielsson, E. Gabathuler, R. Rickenbach, P. Bargassa, Marcin Wladyslaw Wolter, E. Hubert, A. Benelli, C.W.E. van Eijk, J. Derre, F. Leimgruber, A. Schopper, Igor Mandić, M. Fidecaro, Stef. Charalambous, J. R. Fry, P. Bloch, P.J. Hayman, Jeffrey Boone Miller, A. Haselden, V. Bertin, A. Soares, D. Zimmerman, G. Polivka, Elie Aslanides, T. Ruf, Lukas A. Schaller, Michael C. Carroll, A. Apostolakis, M. Schafer, L. Faravel, C. Touramanis, R.W. Hollander, F. Blanc, Frixos A Triantis, P. Pavlopoulos, Marc Dejardin, B.L. Roberts, I. Papadopoulos, R. Kreuger, T. Schietinger, P.-R. Kettle, B. Pagels, G. Marel, A. Muller, M. Mikuž, T. Nakada, D. Francis, A. Ealet, R. Ferreira-Marques, E. Cawley, A. Cody, Andrej Filipcic, E. van Beveren, F. Touchard, João Carvalho, and F. Montanet
Subjects: Physics, Particle physics, Annihilation, Physics and Astronomy (miscellaneous), Skyrmion, Nuclear Theory, Charge (physics), Radius, Momentum, Nuclear physics, Pion, Symmetrization, Nuclear Experiment, Engineering (miscellaneous), Event (particle physics)
Abstract: We study ππ correlations in the exclusive reaction pp → 2π+2π− at rest measured by the CPLEAR experiment. Avoiding the introduction of an arbitrary reference sample, we analyse differential distributions for equal charge pion pairs removing the phase-space factor event by event. A peak at small relative momenta is most pronounced for large total momentum of the pair. The physical implications of bosonic symmetrization for the properties of the pion source, in particular its radius, are briefly discussed. The two extremes considered are the chaotic Hanbury-Brown-Twiss mechanism and the coherent Skyrmion model.
Published: 1998

8. 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

9. 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

10. 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

11. 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

12. 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

13. 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

14. 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

15. 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

16. 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

17. 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

18. Neutron-induced fission cross section of nat-Pb and 209-Bi from threshold to 1 GeV: An improved parametrization

Author: D. Tarrío, L. Tassan Got, L. Audouin, B. Berthier, I. Duran, L. Ferrant, S. Isaev, C. Le Naour, C. Paradela, C. Stephan, D. Trubert, U. Abbondanno, G. Aerts, H. Álvarez, F. Álvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, G. Badurek, P. Baumann, F. Bečvář, 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. Dillmann, C. Domingo Pardo, W. Dridi, C. Eleftheriadis, M. Embid Segura, A. Ferrari, R. Ferreira Marques, K. Fujii, W. Furman, I. Goncalves, E. González Romero, F. Gramegna, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera Martinez, M. Igashira, E. Jericha, Y. Kadi, F. Käppeler, D. Karadimos, D. Karamanis, M. Kerveno, P. Koehler, E. Kossionides, M. Krtička, C. Lampoudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martínez, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O’Brien, M. Oshima, J. Pancin, C. Papachristodoulou, C. Papadopoulos, 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, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santos, L. Sarchiapone, I. Savvidis, G. Tagliente, J. L. Tain, 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, MASSIMI, CRISTIAN, VANNINI, GIANNI, D. Tarrío, L. Tassan-Got, L. Audouin, B. Berthier, I. Duran, L. Ferrant, S. Isaev, C. Le Naour, C. Paradela, C. Stephan, D. Trubert, U. Abbondanno, G. Aert, H. Álvarez, F. Álvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, G. Badurek, P. Baumann, F. Bečvář, 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. Dillmann, C. Domingo-Pardo, W. Dridi, C. Eleftheriadi, M. Embid-Segura, A. Ferrari, R. Ferreira-Marque, K. Fujii, W. Furman, I. Goncalve, E. González-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. Lampoudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, 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, 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, G. Tagliente, J. L. Tain, 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, and K. Wisshak.
Subjects: Physics::Instrumentation and Detectors, NEUTRON-INDUCED REACTION, Nuclear Theory, Nuclear Experiment, FISSION
Abstract: Neutron-induced fission cross sections for natPb and 209Bi were measured with a white-spectrum neutron source at the CERN Neutron Time-of-Flight (n_TOF) 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 235U and 238U 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

19. Neutron-induced fission cross-sectionof 233-U in the energy range 0.5<20 MeV

Author: The n_TOF Collaboration, F. Belloni, M. Calviani, N. Colonna, P. Mastinu, P. M. Milazzo, U. Abbondanno, G. Aerts, H. Álvarez, F. Alvarez Velarde, S. Andriamonje, J. Andrzejewski, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, E. Berthoumieux, 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, A. Ferrari, R. Ferreira Marques, K. Fujii, W. Furman, I. Goncalves, E. Gonzalez Romero, A. Goverdovski, F. Gramegna, 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, M. Kerveno, P. Koehler, E. Kossionides, M. Krtička, C. Lamboudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martınez, MASSIMI, CRISTIAN, M. H. Meaze, A. Mengoni, 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, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santos, L. Sarchiapone, I. Savvidis, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan Got, L. Tavora, R. Terlizzi, VANNINI, GIANNI, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, M. Wiescher, K. Wisshak, The n_TOF Collaboration, F. Belloni, M. Calviani, N. Colonna, P. Mastinu, P. M. Milazzo, U. Abbondanno, G. Aert, H. Álvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, E. Berthoumieux, F. Calviño, D. Cano-Ott, R. Capote, C. Carrapiço, P. Cennini, V. Chepel, E. Chiaveri, G. Corte, A. Couture, J. Cox, M. Dahlfor, S. David, I. Dillmann, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadi, M. Embid-Segura, A. Ferrari, R. Ferreira-Marque, K. Fujii, W. Furman, I. Goncalve, E. Gonzalez-Romero, A. Goverdovski, 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, C. Lamboudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martınez, C. Massimi, M. H. Meaze, A. Mengoni, 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, 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, S. Walter, M. Wiescher, and K. Wisshak
Subjects: NEUTRON-INDUCED REACTION, Nuclear Experiment, FISSION
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 α -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 ≈ 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

20. Two pion Bose-Einstein correlations in p annihilations at rest

Author: G. Chardin, Jean-Louis Faure, D. Garreta, J. Kern, G. Backenstoss, C. Thibault, C. Eleftheriadis, Ch Yèche, Francois Touchard, B. Eckart, Stef. Charalambous, Christer Fuglesang, G. Polivka, J. Pinto da Cunha, H. Postma, K. Sarigiannis, Sp. Dedoussis, R. Le Gac, J. R. Fry, P. Gumplinger, Andras Kerek, J. Duclos, M. Dejardin, A. Go, Ph. Schune, M. Schafer, T. Ruf, M. Chardalas, A. Onofre, A. Soares, R. Kreuger, A. Ealet, Kerstin Jon-And, Christopher Bee, K. Jansson, Nikolaos Manthos, P. Pavlopoulos, Ioannis Evangelou, G. S. Varner, A. Liolios, A. Schopper, B.L. Roberts, P.J. Hayman, J.P. Miller, E. van Beveren, T. Nakada, R. Garnet, Ch. Bula, P.R. Kettle, L. Tauscher, C. Witzig, V. Bertin, W. Fetscher, E. Machado, O. Wigger, Elie Aslanides, J. K. Bienlein, M. Fidecaro, M. Van den Putte, A. Alhalel, J.C. Dousse, P. Fassnacht, S. Vlachos, O. Wolter, G. Marel, J. Bennet, E. Cawley, Marko Mikuz, A. Apostolakis, Mats Danielsson, D.A. Troester, H.-J. Gerber, R. Adler, Igor Mandić, Danilo Zavrtanik, E. Gabathuler, R. Rickenbach, D. Zimmerman, E. Rozaki, W.G. Heyes, C. Kochowski, P. Carlson, R. Ferreira-Marques, B. Pagels, David Francis, C.W.E. van Eijk, P. Sanders, S. Szilagyi, Theodoros Geralis, A. Angelopoulos, P.F. Harrison, A.J.P.L. Policarpo, P. Bloch, J. Derre, Panagiotis Kokkas, F. Pelucchi, P. Weber, C. Touramanis, R.W. Hollander, Frixos A Triantis, T. Lawry, L.A. Schaller, Claudio Santoni, Andrej Filipcic, H.U. Johner, João Carvalho, F. Montanet, Claude Guyot, C. Felder, M. Dodgson, P. Maley, L. Sakeliou, L. Faravel, and L. Sacks
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Pion, Large Hadron Collider, Nuclear Theory, Detector, High Energy Physics::Experiment, Bose–Einstein correlations, Multiplicity (chemistry), Nuclear Experiment
Abstract: Bose-Einstein (BE) correlations between like-sign charged pions were studied in pp annihilations at rest into four-prong events, using data taken with the CPLEAR detector at LEAR (CERN). A strong enhancement was found in the production of pairs of like-sign pions of similar momenta, with respect to the pairs of unlike-sign pions. The observed BE- enhancement was used to extract the values for the strength λ of the effect and the radius r of the pion emitting source. The extracted value of λ >l is of relevant importance and clearly does not depend on the assumed parametrization of the correlation function. The influence of the normalization and fitting procedure, the detector resolution, the resonances production and decay and the neutral-pion multiplicity cuts, on the size of the pion source and the strength of the effect was investigated.
Published: 1993

21. Neutron-induced fission cross section of 234U and 237Np measured at the CERN Neutron Time-of-Flight (n TOF) facility

Author: C. Paradela, L. Tassan Got, L. Audouin, B. Berthier, I. Duran, L. Ferrant, S. Isaev, C. Le Naour, C. Stephan, D. Tarrío, D. Trubert, U. Abbondanno, G. Aerts, H. Álvarez, F. Álvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, G. Badurek, P. Baumann, F. Bečvář, 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. Dillmann, C. Domingo Pardo, W. Dridi, C. Eleftheriadis, M. Embid Segura, A. Ferrari, R. Ferreira Marques, K. Fujii, W. Furman, I. Goncalves, E. González Romero, F. Gramegna, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera Martinez, M. Igashira, E. Jericha, Y. Kadi, F. Käppeler, D. Karadimos, D. Karamanis, M. Kerveno, P. Koehler, E. Kossionides, M. Krtička, C. Lampoudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martínez, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O’Brien, M. Oshima, J. Pancin, C. Papachristodoulou, C. Papadopoulos, 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, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santos, L. Sarchiapone, I. Savvidis, G. Tagliente, J. L. Tain, 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, MASSIMI, CRISTIAN, VANNINI, GIANNI, 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, 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 Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-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, 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), C. Paradela, L. Tassan-Got, L. Audouin, B. Berthier, I. Duran, L. Ferrant, S. Isaev, C. Le Naour, C. Stephan, D. Tarrío, D. Trubert, U. Abbondanno, G. Aert, H. Álvarez, F. Álvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, G. Badurek, P. Baumann, F. Bečvář, 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. Dillmann, C. Domingo-Pardo, W. Dridi, C. Eleftheriadi, M. Embid-Segura, A. Ferrari, R. Ferreira-Marque, K. Fujii, W. Furman, I. Goncalve, E. González-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. Lampoudi, H. Leeb, A. Lindote, I. Lope, M. Lozano, S. Lukic, J. Marganiec, 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, 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, G. Tagliente, J. L. Tain, 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, and K. Wisshak
Subjects: NEUTRON-INDUCED REACTIONS, NUCLEAR PHYSICS, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, NUCLEAR FISSION, 25.85.Ec, 28.65.+a, 28.41.Kw, 28.41.Vx
Abstract: A high-resolution measurement of the neutron-induced fission cross section of 234U and 237Np 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 235U cross section as reference. In these measurements the energy determination for the 234U resonances could be improved, whereas previous discrepancies for the 237Np 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 237Np.
Published: 2010

22. 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

23. 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

24. 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

25. 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

26. Study of Neutron-Induced Fission Cross Sections of U, Am, and Cm at ṉTOF

Author: P. M. Milazzo, U. Abbondanno, G. Aerts, H. Alvarez, F. Alvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Becčvář, 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, P. Koehler, 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, 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, G. Tagliente, 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 Joint Research Centre European Community (EC), Ricardo Alarcon , Phil Cole , Andres J. Kreiner and Hugo F. Arellano, P. M. Milazzo, U. Abbondanno, G. Aert, H. Alvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, G. Badurek, P. Baumann, F. Becčvář, 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, P. Koehler, 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, 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, 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, Ricardo Alarcon, Phil Cole, Andres J. Kreiner, and Hugo F. Arellano
Subjects: Nuclear reaction, Isotopes of uranium, Isotope, Chemistry, Fission, Nuclear Theory, Radiochemistry, Alpha particle, NEUTRON INDUCED REACTIONS, Neutron cross section, Nuclear physics, Neutron-induced fission reactions, N_TOF, Uranium-233, Physics::Accelerator Physics, Neutron, Spallation, Nuclear Experiment, TIME-OF-Flight
Abstract: Neutron induced fission cross sections of several isotopes have been measured at the CERN n_TOF spallation neutron facility. Between them some measurements involve isotopes (233U, 241Am, 243Am, 245Cm) relevant for applications to nuclear technologies. The n_TOF facility delivers neutrons with high instantaneous flux and in a wide energy range, from thermal up to 250 MeV. The experimental apparatus consists of an ionization chamber that discriminates fission fragments and α particles coming from natural radioactivity of the samples. All the measurements were performed referring to the standard cross section of 235U. European Commission Joint Research Centre European Community (EC) FIKW-CT-2000-00107
Published: 2010

27. First determination of CP violation parameters from K0−0 decay asymmetry

Author: S. Charalambous, D. Francis, T. Alhalel, P. Fassnacht, M. Dodgson, J. Bennet, R. Rickenbach, Claudio Santoni, K. Sarigiannis, João Carvalho, M. Van den Putte, F. Montanet, B. Eckart, C. Thibault, E. Gabathuler, E. Aslanides, A. Filipcic, T. Nakada, Marko Mikuz, Kerstin Jon-And, P Harrison, A. Schopper, F. Touchard, C. Touramanis, R. Ferreira-Marques, H. Cobbaert, H.-J. Gerber, P.-R. Kettle, E. van Beveren, P. Kokkas, J. R. Fry, S. Szilagyi, P.J. Hayman, Ch. Bula, G. Polivka, Ph. Schune, J. Duclos, W.G. Heyes, E. Rozaki, T. Geralis, W. Fetscher, A. Apostolakis, A. Ealet, A. Go, M. Fidecaro, P. Maley, L. Faravel, J.K. Bielein, T. Lawry, G. Varner, T. Ruf, P. Carlson, A. Onofre, J. Pinto Dacunha, P. Pavlopoulos, Christopher Bee, D. Zimmerman, K. Jansson, P. Sanders, S. Vlachos, Christer Fuglesang, C.W.E. Van Eijk, R. Adler, M. Chardalas, Andras Kerek, Marc Dejardin, G. Marel, L. Sacks, L.A. Schaller, F. Triantis, R. Le Gac, Claude Guyot, G. Burgun, A.J.P.L. Policarpo, E. Machado, J. Derre, P. Weber, F. Pelucchi, A. Angelopoulos, R. Kreuger, S. Dedoussis, D.A. Troster, P. Gumplinger, L. Sakeliou, C. Felder, J. Miller, N. Manthos, G. Chardin, Jean-Louis Faure, C. Yeche, D. Garreta, G. Backenstoss, M. Schafer, C. Witzig, R. Gamet, C. Kochowski, H.U. Johner, B. Pagels, L. Tauscher, J.-C. Dousse, H. Postma, D. Zavrtanik, J. Kern, P. Bloch, E. Cawley, R.W. Hollander, and U. Seljak
Subjects: Physics, Systematic error, Nuclear and High Energy Physics, Particle physics, media_common.quotation_subject, Value (computer science), Asymmetry, Nuclear physics, Pion, CP violation, High Energy Physics::Experiment, Direct proof, Nuclear Experiment, Bar (unit), media_common
Abstract: We report the first determination of CP violation parameters from parameter from particle—antiparticle asymmetry in the decay of neutral kaons into two charged pions. Observation of such an asymmetry is direct proof of CP violation. A fit to the asymmetry enabled a determination of the parameter η+− to be made, yielding the result |η+−|=[2.32±0.14 (stat.)±0.03 (syst.)]×10−3 and σ+−=42.3°±4.4° (stat.)±0.4° (syst.), with an additional uncertainty of ±1.0° due to the error on the present published value of Δm, the KL0-KS0 mass difference. The magnitudes of both statistical and systematic errors will be significantly reduced in the future.
Published: 1992

28. The CPLEAR particle identification detector

Author: Stef. Charalambous, D. Warner, R. Rickenbach, Jeffrey Boone Miller, P. Pavlopoulos, H.-J. Gerber, R. Ferreira-Marques, F. Pelucchi, S. Szilagyi, F. Montanet, W. Fetcher, Christer Fuglesang, H. Cobbaert, A. Go, David Francis, Panagiotis Kokkas, E. Machado, T. Lawry, G. S. Varner, K. Jansson, E. Rozaki, J. Pinto da Cunha, G. Kesseler, Sp. Dedoussis, João Carvalho, K. Sarigiannis, B.L. Roberts, M. Wildi, A. Apostolakis, A. Onofre, G. Backenstoss, A. Angelopoulos, C. Touramanis, Frixos A Triantis, Patrick Fassnacht, L. Sakeliou, A.J.P.L. Policarpo, J Kuzminski, Kerstin Jon-And, D. Zimmerman, M. Chardalas, P. Carlson, and Andras Kerek
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Detector, Particle identification, Momentum, Nuclear physics, Pion, Antiproton, Physics::Accelerator Physics, CP violation, High Energy Physics::Experiment, Detectors and Experimental Techniques, Nuclear Experiment, Instrumentation, Beam (structure)
Abstract: The CPLEAR experiment will measure CP violation parameters in the neutral kaon system, using a low energy antiproton beam from the Low Energy Antiproton Ring (LEAR) at CERN. One of its subdetectors, the Particle Identification Detector (PID), makes a fast separation of pions and kaons, which is essential for the experiment. This article describes the design of the PID and its performance during beam tests and during initial runs at LEAR. A pion rejection efficiency of 99.7% for the first level trigger (after 60 ns) is found in the relevant momentum region.
Published: 1992

29. 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

30. 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

31. Fission cross-section measurements on [sup 233]U and minor actinides at the CERN ṉTOF facility

Author: J. M. Quesada, L. Tassan-Got, V. Chepel, S. Andriamonje, B. Haas, J. Salgado, W. Dridi, G. Rudolf, Corrie S. Moreau, A. Poch, E. Chiaveri, P. F. Mastinu, A. Ventura, G. Cortes, P. Baumann, L. Tavora, R. Vlastou, L. Ferrant, J. Andrzejewski, N. Colonna, D. Cano-Ott, E. Berthoumieux, P. Rullhusen, A. J. M. Plompen, V. Ketlerov, C. Santos, W.I. Furman, D. Villamarin, D. Karamanis, I. Dillmann, N. Patronis, A. Plukis, Roberto Capote, P.A. Assimakopoulos, L. Perrot, L. Sarchiapone, Masayuki Igashira, G. Aerts, V. Konovalov, F. Bečvář, Marco T. Pigni, J. Marganiec, F. Neves, K. Fujii, P. M. Milazzo, S. David, I. Savvidis, James L. Cox, Marco Calviani, Manuel Lozano, A. Herrera-Martinez, C. A. Papachristodoulou, G. Vannini, G. Tagliente, M. Krtička, F. Calviño, P. Cennini, A. Lindote, R. Ferreira-Marques, T. Martinez, F. Voss, Matthias Heil, J. Pancin, Fabio Belloni, C. Carrapiço, A. Goverdovski, I. Duran, F. Alvarez-Velarde, P. Pavlopoulos, M. Mosconi, E. Jericha, Gerald Badurek, M. C. Vincente, S. O'Brien, C. Eleftheriadis, Y. Kadi, R. C. Haight, Thomas Rauscher, Carlos Guerrero, U. Abbondanno, R. Terlizzi, E. Kossionides, C. Paradela, L. Audouin, C. Pretel, D. Karadimos, P. E. Koehler, Javier Praena, Heinz Oberhummer, E. González-Romero, M. Embid‐Sesura, Vasilis Vlachoudis, Michael Wiescher, S. Walter, Ralf Plag, F. Gramegna, H. Álvarez, Isabel Lopes, J. L. Tain, S. Lukic, C. Rubbia, Isabel S. Gonçalves, S. Marrone, M. Kerveno, Alberto Mengoni, F. Käppeler, Costas G. Papadopoulos, M. Dahlfors, P. Vaz, Aaron Couture, C. Lampoudis, A. Pavlik, C. Domingo-Pardo, C. Stephan, F. Gunsing, Cristian Massimi, H. Leeb, A. Ferrari, K. Wisshak, and Rene Reifarth
Subjects: Nuclear physics, Chemistry, Isotopes of samarium, Xenon-135, Nuclear Theory, Radiochemistry, Neutron cross section, Neutron source, Neutron, Fission product yield, Nuclear Experiment, Long-lived fission product, Fast fission
Abstract: Neutron‐induced fission cross‐sections of minor actinides have been measured at the white neutron source n_TOF at CERN, Geneva. The studied isotopes include 233U, interesting for Th/U based nuclear fuel cycles, 241,243Am and 245Cm, relevant for transmutation and waste reduction studies in new generation fast reactors (Gen‐IV) or Accelerator Driven Systems. The measurements take advantage of the unique features of the n_TOF facility, namely the wide energy range, the high instantaneous neutron flux and the low background. Results for the involved isotopes are reported from ∼30 meV to around 1 MeV neutron enegy. The measurements have been performed with a dedicated Fission Ionization Chamber (FIC), relative to the standard cross‐section of the 235U fission reaction, measured simultaneously with the same detector. Results are here reported.
Published: 2009

32. High-accuracy U233(n,f) cross-section measurement at the white-neutron source n_TOF from near-thermal to 1 MeV neutron energy

Author: M. Calviani, J. Praena, U. Abbondanno, G. Aerts, H. Alvarez, F. Alvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Becvar, E. Berthoumieux, F. Calvino, D. Cano Ott, R. Capote, C. Carrapico, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillmann, C. Domingo Pardo, W. Dridi, I. Duran, C. Eleftheriadis, L. Ferrant, A. Ferrari, R. Ferreira Marques, K. Fujii, W. Furman, I. Goncalves, E. Gonzalez Romero, F. Gramegna, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera Martinez, M. Igashira, E. Jericha, F. Kappeler, Y. Kadi, D. Karadimos, M. Kerveno, P. Koehler, E. Kossionides, M. Krticka, C. Lampoudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martinez, P. Mastinu, E. Mendoza, 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, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santos, L. Sarchiapone, I. Savvidis, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan Got, L. Tavora, R. Terlizzi, P. Vaz, A. Ventura, D. Villamarin, M. C. Vicente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, M. Wiescher, K. Wisshak, MASSIMI, CRISTIAN, VANNINI, GIANNI, M. Calviani, J. Praena, 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, 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, C. Guerrero, 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, 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, and K. Wisshak
Subjects: NETRON INDUCED REACTIONS, Nuclear Experiment, NUCLEAR FISSION
Abstract: The U233(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 ∼30 meV to 1 MeV neutron energy. The U233(n,f) cross section has been determined relative to a reference sample of U235(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% in the whole energy 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 U233 fission cross section and for improving the reliability of databases needed for the design of new energy systems based on the Th/U cycle. © 2009 The American Physical Society
Published: 2009

33. Neutron Capture Measurements at the ṉTOF Facility

Author: W.I. Furman, C. A. Papachristodoulou, F. Alvarez-Velarde, S. Andriamonje, G. Vannini, S. Walter, Ralf Plag, Carlos Guerrero, Gerald Badurek, U. Abbondanno, Heinz Oberhummer, S. David, C. Stephan, F. Gunsing, P. F. Mastinu, G. Tagliente, Cristian Massimi, S. Lukic, D. Cano-Ott, F. Gramegna, R. Vlastou, E. Berthoumieux, J. Andrzejewski, C. Paradela, H. Leeb, Isabel Lopes, N. Colonna, V. Chepel, L. Audouin, I. Savvidis, K. Wisshak, F. Voss, E. Kossionides, G. Rudolf, J. Salgado, G. Cortes, C. Carrapiço, Javier Praena, Michael Wiescher, C. Santos, A. Poch, J. Marganiec, A. Plukis, M. C. Vincente, L. Tavora, G. Aerts, Vasilis Vlachoudis, P. Baumann, P. E. Koehler, F. Bečvář, L. Ferrant, Roberto Capote, M. Krtička, F. Calviño, P.A. Assimakopoulos, F. Neves, P. M. Milazzo, R. Ferreira-Marques, T. Martinez, A. Lindote, L. Sarchiapone, M. Embid-Segura, L. Perrot, A. Herrera-Martinez, D. Karamanis, F. Käppeler, N. Patronis, James L. Cox, Arnaud Ferrari, Manuel Lozano, Matthias Heil, J. Pancin, D. Villamarin, I. Duran, E. Jericha, P. Cennini, Y. Kadi, M. Mosconi, I. Dillman, S. O'Brien, Marco Calviani, R. Terlizzi, P. Pavlopoulos, W. Dridi, A. Ventura, Rene Reifarth, J. M. Quesada, L. Tassan-Got, M. Dahlfors, P. Vaz, Aaron Couture, A. Pavlik, C. Domingo-Pardo, H. Álvarez, C. Lamboudis, J. L. Tain, C. Rubbia, Isabel S. Gonçalves, S. Marrone, M. Kerveno, K. Fujii, A. Mengoni, C. Pretel, C. Eleftheriadis, D. Karadimos, and E. González-Romero
Subjects: Nuclear physics, Physics, Neutron capture, Neutron flux, Nuclear Theory, Neutron cross section, Nuclear astrophysics, Physics::Accelerator Physics, Neutron source, Neutron, Neutron scattering, Neutron radiation, Nuclear Experiment
Abstract: Nuclear astrophysics, advanced nuclear technology and nuclear structure physics present many cases that require neutron capture reaction data with high precision. In particular, refined data are needed for stellar nucleosynthesis, for nuclear waste transmutation studies, and for the design of generation IV reactors. The measurements take profit of the pulsed neutron beam of the n_TOF facility at CERN, which is generated by proton‐induced spallation reactions on a massive lead target. The low repetition rate of the proton beam, the high instantaneous neutron flux, and the favourable background conditions in the experimental area make this facility unique for high resolution time‐of‐flight measurements of neutron induced reaction cross sections. The n_TOF collaboration is presently operating two different experimental set‐ups. The first consists of two low‐neutron sensitivity C6D6 detectors with the analysis relying on the Pulse Height Weighting technique. In addition, a Total Absorption Calorimeter, consis...
Published: 2009

34. 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

35. Experimental study of theZr91(n,γ) reaction up to 26 keV

Author: D. Karamanis, I. Dillmann, B. Haas, E. Jericha, J. Marganiec, G. Cortes, S. Andriamonje, I. Duran, A. Herrera-Martinez, N. Patronis, Arnaud Ferrari, C. Eleftheriadis, F. Calviño, H. Leeb, G. Aerts, S. Lukic, Alberto Mengoni, C. T. Papadopoulos, W. Dridi, A. Pavlik, M. C. Vincente, Thomas Rauscher, K. Fujii, P. F. Mastinu, L. Sarchiapone, Roberto Capote, P.A. Assimakopoulos, C. Domingo-Pardo, D. Karadimos, Christoph A. Stephan, C. Rubbia, F. Neves, P. M. Milazzo, R. C. Haight, K. Wisshak, L. Tavora, A. Ventura, C. Paradela, L. Ferrant, F. Voss, A. Lindote, P. Rullhusen, G. Vannini, L. Audouin, Nicola Colonna, Isabel S. Gonçalves, S. Marrone, J. Pancin, M. Kerveno, Michael Wiescher, C. Carrapiço, Fabio Belloni, S. David, Vasilis Vlachoudis, D. Villamarin, F. Gunsing, Rene Reifarth, M. Dahlfors, G. Tagliente, Y. Kadi, Marco T. Pigni, F. Gramegna, P. E. Koehler, P. Cennini, P. Vaz, Cristian Massimi, J. Praena-Rodriguez, I. Savvidis, J. M. Quesada, L. Tassan-Got, E. Gonzalez-Romero, Carlos Guerrero, Aaron Couture, U. Abbondanno, J. Salgado, A. Poch, A. Plukis, M. Mosconi, Marco Calviani, L. Perrot, F. Bečvář, H. Álvarez, F. Alvarez-Velarde, R. Vlastou, Heinz Oberhummer, C. Lamboudis, J. L. Tain, E. Berthoumieux, S. O'Brien, V. Chepel, Gerald Badurek, E. Kossionides, R. Terlizzi, M. Krtička, P. Baumann, S. Walter, C. Santos, R. Ferreira-Marques, T. Martinez, F. Käppeler, P. Pavlopoulos, Ralf Plag, C. Pretel, W.I. Furman, C. A. Papachristodoulou, Masayuki Igashira, Michael Heil, M. Embid-Segura, Manuel Lozano, A. J. M. Plompen, D. Cano-Ott, G. Rudolf, I. Lopes, James L. Cox, J. Andrzejewski, and Corrie S. Moreau
Subjects: Physics, Nuclear reaction, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Gamma ray, 01 natural sciences, 7. Clean energy, Neutron temperature, Nuclear physics, Neutron capture, Nucleosynthesis, 0103 physical sciences, Nuclear astrophysics, Neutron, Atomic physics, Nuclear Experiment, s-process, 010303 astronomy & astrophysics
Abstract: The neutron capture cross sections of the Zr isotopes are relevant to studies in nuclear structure, nuclear astrophysics, and nuclear technology. The valence neutron of {sup 91}Zr with respect to the neutron magic nucleus {sup 90}Zr has interesting implications for the statistical analysis in the proximity of shell closures. In stellar nucleosynthesis, the Zr isotopes are important for the s-process reaction flow between the Fe seeds and the heavier isotopes. Because of its relatively small (n,{gamma}) cross sections, Zr represents also an interesting structural material for nuclear reactors. For the same reason, these cross sections are difficult to measure and reliable data are sparse. Therefore, the (n,{gamma}) cross sections of the Zr isotopes have been remeasured at the CERN n{sub T}OF facility. Thanks to its high instantaneous flux, good energy resolution, and low background, this facility is particularly suited for the determination of small, resonance-dominated cross sections. In this work, results for the {sup 91}Zr(n,{gamma}){sup 92}Zr reaction are reported in the neutron energy range from thermal to 26 keV. In this region, accurate data of 157 resonances could be obtained, 33 of these resonances are not present in the main databases and/or were observed for the first time.
Published: 2008

36. Neutron capture cross section ofZr90: Bottleneck in thes-process reaction flow

Author: L. Ferrant, W.I. Furman, Corrie S. Moreau, I. Duran, L. Tavora, C. A. Papachristodoulou, J. Pancin, J. Salgado, K. Fujii, A. Poch, G. Cortes, G. Aerts, P. Rullhusen, Carlos Guerrero, U. Abbondanno, A. J. M. Plompen, Heinz Oberhummer, S. Walter, V. Chepel, G. Rudolf, Ralf Plag, C. Carrapiço, F. Voss, I. Lopes, Sara Bisterzo, F. Becvar, M. C. Vincente, Y. Kadi, H. Leeb, M. Embid-Segura, P. Baumann, E. Kossionides, Roberto Capote, Christoph A. Stephan, C. Santos, S. David, C. Eleftheriadis, P.A. Assimakopoulos, P. Cennini, James L. Cox, F. Neves, J. Andrzejewski, P. M. Milazzo, A. Pavlik, G. Tagliente, A. Herrera-Martinez, N. Patronis, Javier Praena, C. Domingo-Pardo, I. Dillman, Manuel Lozano, Vasilis Vlachoudis, Arnaud Ferrari, M. Mosconi, Thomas Rauscher, K. Wisshak, E. Jericha, Marco Calviani, D. Karamanis, S. O'Brien, L. Perrot, C. Pretel, A. Lindote, S. Lukic, R. Terlizzi, D. Karadimos, P. E. Koehler, H. Wendler, P. Pavlopoulos, F. Alvarez-Velarde, F. Gunsing, Gerald Badurek, M. Dahlfors, A. Mengoni, L. Sarchiapone, F. Gramegna, Cristian Massimi, P. Vaz, R. Vlastou, Aaron Couture, D. Cano-Ott, E. Berthoumieux, R. Gallino, Michael Heil, I. Savvidis, Masayuki Igashira, F. Kaeppeler, B. Haas, W. Dridi, Rene Reifarth, N. Colonna, J. M. Quesada, L. Tassan-Got, A. Ventura, E. Gonzalez-Romero, A. Plukis, D. Villamarin, Marco T. Pigni, M. Krtička, F. Calviño, R. Ferreira-Marques, T. Martinez, R. C. Haight, C. Paradela, J. Marganiec, S. Andriamonje, E. Chiaveri, L. Audouin, P. F. Mastinu, Michael Wiescher, H. Álvarez, C. Lamboudis, J. L. Tain, M. Kerveno, C. T. Papadopoulos, C. Rubbia, Isabel S. Gonçalves, S. Marrone, and G. Vannini
Subjects: Nuclear reaction, Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, 7. Clean energy, 01 natural sciences, Neutron temperature, Nuclear physics, Neutron capture, 0103 physical sciences, Neutron cross section, Neutron source, Neutron, Nuclear Experiment, s-process, 010303 astronomy & astrophysics, Spallation Neutron Source
Abstract: The neutron capture cross sections of the Zr isotopes have important implications in nuclear astrophysics and for reactor design. The small cross section of the neutron magic nucleus Zr-90, which accounts for more than 50 for the stellar s-process, because it acts as a bottleneck in the neutron capture chain between the Fe seed and the heavier isotopes. The same element, Zr, also is an important component of the structural materials used in traditional and advanced nuclear reactors. The (n, gamma) cross section has been measured at CERN, using the n_TOF spallation neutron source. In total, 45 resonances could be resolved in the neutron energy range below 70 keV, 10 being observed for the first time thanks to the high resolution and low backgrounds at n_TOF. On average, the Gamma(gamma) widths obtained in resonance analyses with the R-matrix code SAMMY were 15 these results, the accuracy of the Maxwellian averaged cross section for s-process calculations has been improved by more than a factor of 2.
Published: 2008

37. Measurement of the 197Au (n,γ) cross section at n_TOF: towards a new standard

Author: A. J. M. Plompen, G. Rudolf, I. Lopes, A. Herrera-Martinez, N. Patronis, C. Pretel, Arnaud Ferrari, James L. Cox, A. Pavlik, D. Karamanis, I. Dillmann, C. Domingo-Pardo, Alberto Mengoni, S. David, G. Tagliente, B. Haas, F. Gramegna, G. Aerts, G. Vannini, Corrie S. Moreau, K. Fujii, E. Kossionides, Javier Praena, P. E. Koehler, L. Tavora, F. Voss, P. Rullhusen, L. Sarchiapone, F. Becvar, M. Dahlfors, C. Carrapiço, W. Dridi, Nicola Colonna, I. Savvidis, D. Cano-Ott, J. Salgado, A. Poch, J. Andrzejewski, Rene Reifarth, Vasilis Vlachoudis, P. Vaz, A. Lindote, Aaron Couture, Matthias Heil, S. Lukic, R. C. Haight, J. M. Quesada, L. Tassan-Got, P. Cennini, F. Käppeler, F. Alvarez-Velarde, A. Plukis, J. Pancin, C. Paradela, G. Cortes, Gerald Badurek, R. Vlastou, M. Mosconi, J. Marganiec, S. Andriamonje, Y. Kadi, L. Audouin, I. Duran, E. Chiaveri, E. Berthoumieux, P. F. Mastinu, S. O'Brien, C. Lampoudis, M. Krtička, C. Eleftheriadis, R. Ferreira-Marques, T. Martinez, A. Ventura, R. Terlizzi, M. C. Vincente, Christoph A. Stephan, Michael Wiescher, Marco Calviani, Thomas Rauscher, Roberto Capote, U. Abbondanno, P.A. Assimakopoulos, D. Karadimos, Marco T. Pigni, F. Neves, P. M. Milazzo, E. González-Romero, C. Santos, L. Ferrant, D. Villamarin, E. Jericha, F. Gunsing, P. Pavlopoulos, Cristian Massimi, H. Leeb, K. Wisshak, Masayuki Igashira, M. Kerveno, C. T. Papadopoulos, C. Rubbia, Isabel S. Gonçalves, S. Marrone, H. Álvarez, J. L. Tain, M. Embid-Segura, Manuel Lozano, L. Perrot, F. Calvino, V. Chepel, P. Baumann, W.I. Furman, C. A. Papachristodoulou, S. Walter, Ralf Plag, Carlos Guerrero, Heinz Oberhummer, 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, Neutron cross sections, Large Hadron Collider, Nuclear physics, Resonance, Nuclear data, Calorimetry, Neutrons -- Seccions, Calorimeter, Cross section (physics), Física::Astronomia i astrofísica [Àrees temàtiques de la UPC], Calorimetria, Neutron cross section, Física nuclear, Neutron, Nuclear Experiment, Absorption (electromagnetic radiation)
Abstract: Two different detectors and techniques are employed at n TOF facility, at CERN, to improve the accuracy of the neutron capture cross section of 197Au(n,γ): a total absorption calorimeter and a set of C6D6. The accurate knowledge of this cross section is of great importance for all the (n,γ) reactions study. The neutron capture cross section and nuclear resonce parameters of the 197Au have been measured in the energy range of 1 eV to 1 kev. The present work shows in average a good agreement with evaluated data libraries, although sizeable differences have been observed for some resonances. Two new resonances have also been discovered. The accuracy of the resonance partial widths has been improved and the main nuclear quantities such as the neutron strength function have been extracted.
Published: 2007

38. Measurement of the 90,91,92,93,94,96Zr(n,γ) and 139La(n,γ) cross sections at n_TOF

Author: A. J. M. Plompen, G. Aerts, G. Rudolf, I. Lopes, A. Herrera-Martinez, N. Patronis, S. David, Arnaud Ferrari, Alberto Mengoni, G. Tagliente, I. Savvidis, F. Gunsing, M. Embid-Segura, James L. Cox, G. Cortes, Cristian Massimi, H. Álvarez, C. Eleftheriadis, Manuel Lozano, R. Vlastou, E. Berthoumieux, M. C. Vincente, J. L. Tain, Christoph A. Stephan, L. Ferrant, F. Gramegna, J. Salgado, F. Alvarez-Velarde, A. Pavlik, Thomas Rauscher, A. Poch, U. Abbondanno, C. Domingo-Pardo, Carlos Guerrero, Gerald Badurek, K. Wisshak, D. Villamarin, A. Ventura, D. Karadimos, L. Tavora, C. T. Papadopoulos, Corrie S. Moreau, Heinz Oberhummer, E. González-Romero, E. Kossionides, Roberto Capote, C. Rubbia, Javier Praena, P. Pavlopoulos, C. Pretel, M. Dahlfors, P.A. Assimakopoulos, J. Marganiec, S. Andriamonje, A. Lindote, Rene Reifarth, D. Cano-Ott, P. Vaz, J. Andrzejewski, C. Santos, E. Chiaveri, P. F. Mastinu, H. Leeb, Isabel S. Gonçalves, S. Marrone, Aaron Couture, P. Rullhusen, W.I. Furman, Masayuki Igashira, S. Lukic, J. M. Quesada, M. Kerveno, L. Tassan-Got, G. Vannini, J. Pancin, F. Kaeppeler, K. Fujii, M. Krtička, L. Sarchiapone, C. A. Papachristodoulou, B. Haas, P. Cennini, F. Voss, S. Walter, F. Becvar, R. Ferreira-Marques, T. Martinez, F. Neves, C. Lampoudis, Ralf Plag, P. M. Milazzo, Nicola Colonna, M. Mosconi, W. Dridi, Vasilis Vlachoudis, Marco Calviani, S. O'Brien, R. Terlizzi, E. Jericha, Matthias Heil, Y. Kadi, A. Plukis, P. E. Koehler, I. Duran, Marco T. Pigni, C. Carrapiço, D. Karamanis, I. Dillmann, R. C. Haight, C. Paradela, L. Audouin, Michael Wiescher, V. Chepel, P. Baumann, L. Perrot, F. Calvino, 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, Astrofísica nuclear, Neutron cross sections, Física [Àrees temàtiques de la UPC], Isotope, Red giant, Nuclear Theory, Nuclear data, Neutrons -- Seccions, Resonance (particle physics), Nuclear physics, Cross section (physics), Neutron capture, Nuclear reactors, Reactors nuclears, Nuclear astrophysics, Nuclear Experiment, s-process
Abstract: Neutron capture cross sections of Zr and La isotopes have important implications in the field of nuclear astrophysics as well as in the nuclear technology. In particular the Zr isotopes play a key role for the determination of the neutron density in the He burning zone of the Red Giant star, while the 139La is important to monitor the s-process abundances from Ba up to Pb. Zr is also largely used as structural materials of traditional and advanced nuclear reactors. The nuclear resonance parameters and the cross section of 90,91,92,93,94,96Zr and 139La have been measured at the n TOF facility at CERN. Based on these data the capture resonance strength and the Maxwellian-averaged cross section were calculated.
Published: 2007

39. The neutron capture cross sections of 237Np(n,gamma) and 240Pu(n,gamma) and its relevance in the transmutation of nuclear waste

Author: C. Carrapiço, A. Ventura, M. Dahlfors, P. Vaz, H. Leeb, P. Cennini, A. Plukis, Aaron Couture, J. Pancin, C. Santos, F. Voss, F. Becvar, Nicola Colonna, Vasilis Vlachoudis, J. Marganiec, S. Andriamonje, E. Chiaveri, P. F. Mastinu, E. Jericha, Corrie S. Moreau, R. Vlastou, E. Berthoumieux, M. Mosconi, S. O'Brien, D. Cano-Ott, S. David, G. Tagliente, F. Gramegna, P. Pavlopoulos, Carlos Guerrero, Heinz Oberhummer, I. Savvidis, J. Andrzejewski, M. Embid-Segura, D. Karamanis, I. Dillmann, K. Wisshak, L. Ferrant, A. Pavlik, F. Kaeppeler, Manuel Lozano, C. Domingo-Pardo, C. Lampoudis, A. J. M. Plompen, R. Terlizzi, E. Kossionides, W.I. Furman, Rene Reifarth, F. Neves, V. Chepel, G. Vannini, P. M. Milazzo, R. C. Haight, Javier Praena, D. Villamarin, H. Álvarez, M. C. Vincente, P. Baumann, S. Lukic, C. Pretel, G. Rudolf, I. Lopes, L. Tavora, C. Paradela, J. L. Tain, Christoph A. Stephan, M. Krtička, F. Calviño, L. Audouin, J. Salgado, F. Gunsing, C. A. Papachristodoulou, K. Fujii, P. Rullhusen, R. Ferreira-Marques, T. Martinez, Cristian Massimi, J. M. Quesada, A. Poch, L. Tassan-Got, Michael Wiescher, S. Walter, James L. Cox, U. Abbondanno, Marco T. Pigni, M. Kerveno, G. Cortes, Ralf Plag, G. Aerts, L. Perrot, Roberto Capote, P.A. Assimakopoulos, C. T. Papadopoulos, C. Rubbia, B. Haas, Isabel S. Gonçalves, S. Marrone, W. Dridi, A. Lindote, F. Alvarez-Velarde, Gerald Badurek, A. Herrera-Martinez, N. Patronis, Arnaud Ferrari, Alberto Mengoni, L. Sarchiapone, Matthias Heil, Y. Kadi, Marco Calviani, C. Eleftheriadis, Thomas Rauscher, D. Karadimos, E. González-Romero, P. E. Koehler, I. Duran, Masayuki Igashira, 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: Neutron cross sections, Nuclear transmutation, Física [Àrees temàtiques de la UPC], Chemistry, Nuclear engineering, Acceleradors de partícules, Nuclear Theory, Nuclear data, Radioactive waste, Particle accelerator, Actinide, Neutrons -- Seccions, Particle accelerators, law.invention, Calorimeter, Nuclear physics, Neutron capture, law, Nuclear Experiment
Abstract: Neutron capture cross sections of actinides are of great relevance for the Transmutation of Nuclear Waste in Accelerator Driven Systems (ADS) and Generation-IV reactors. The neutron capture cross sections of 237Np and 240Pu were measured at the n TOF facility with a Total Absorption Calorimeter. The data have been analyzed with the SAMMY code. The corresponding covariance matrices have been generated. The final cross sections are presented and compared to the previously existing ones.
Published: 2007
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40. The 234U neutron capture cross section measurement at the n TOF facility

Author: C. Lampoudis, U. Abbondanno, G. Aerts, H. Álvarez, F. Álvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, 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. 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, F. Gramegna, 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, M. Kerveno, P. Koehler, E. Kossionides, M. Krtička, 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, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santos, 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, 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, Large Hadron Collider, Neutron cross sections, Física [Àrees temàtiques de la UPC], Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Nuclear data, Calorimetry, Neutrons -- Seccions, Calorimeter, Nuclear physics, Neutron capture, R-matrices, Calorimetria, Neutron cross section, Neutron source, Spallation, Neutron, Física nuclear, Nuclear Experiment
Abstract: The neutron capture cross-section of 234U has been measured for energies from thermal up to the keV region in the neutron time-of-flight facility n TOF, based on a spallation source located at CERN. A 4π BaF2 array composed of 40 crystals, placed at a distance of 184.9 m from the neutron source, was employed as a total absorption calorimeter (TAC) for detection of the prompt γ-ray cascade from capture events in the sample. This text describes the experimental setup, all necessary steps followed during the data analysis procedure. Results are presented in the form of R-matrix resonance parameters from fits with the SAMMY code and compared to the evaluated data of ENDF in the relevant energy region, indicating the good performance of the n TOF facility and the TAC.
Published: 2007

41. Simultaneous measurement of the neutron capture and fission yields of 233-U

Author: E. Berthoumieux, U. Abbondanno, G. Aerts, H. Álvarez, F. Álvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, 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. 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, F. Gramegna, 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, M. Kerveno, P. Koehler, 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, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santos, 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, 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, Fission, Neutrons--Measurement, Nuclear Theory, Nuclear data, Fission product yield, Calorimetry, Calorimeter, Nuclear physics, Neutron capture, Calorimetria, Física::Astronomia i astrofísica [Àrees temàtiques de la UPC], Neutron cross section, Neutrons -- Mesurament, Neutron, Atomic physics, Absorption (electromagnetic radiation), Nuclear Experiment
Abstract: We have measured the neutron capture and fission cross section of 233U at the neutron time-of-flight facility n TOF at CERN in the energy range from 1 eV to 1 MeV with high accuracy by using a high performance 4π BaF2 Total Absorption Calorimeter (TAC) as a detection device. The method, based on the TAC energy response study, allowing to disentangle between γ’s originating from fission and capture will be presented as well as the first very preliminary results.
Published: 2007

42. Measurement of neutron induced fission of 235U, 233U and 245Cm with the FIC detector at the CERN n_TOF facility

Author: Marco Calviani, Dimitrios Karadimos, U. Abbondanno, G. Aerts, H. Álvarez, F. Álvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, E. Berthoumieux, F. Calviño, 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. 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, F. Gramegna, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, E. Jericha, F. Käppeler, Y. Kadi, D. Karamanis, M. Kerveno, P. Koehler, 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, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santos, 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, 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, Física [Àrees temàtiques de la UPC], Physics::Instrumentation and Detectors, Fission, Nuclear Theory, Nuclear data, Nuclear energy, Neutron radiation, Residus radioactius, Nuclear physics, Nuclear wastes, Neutron flux, Ionization chamber, Neutron cross section, Energia nuclear, Neutron, Spallation, Nuclear Experiment
Abstract: A series of measurements of neutron induced fission cross section of various TRU isotopes have been performed at the CERN n TOF spallation neutron facility, in the energy range from thermal to nearly 250 MeV. The experimental apparatus consists in a fast ionization chamber (FIC), used as a fission fragment detector with a high efficiency. Good discrimination between alphas and fission fragments can be obtained with a simple amplitude threshold. In order to allow the monitoring of the neutron beam and to extract the n TOF neutron flux, the well known cross section of the 235U(n,f) reaction, considered as a fission standard, has been used. Preliminary results for the cross section are shown for some selected isotopes such as 235U, 233U and 245Cm in the energy range from 0.050 eV to about 2MeV.
Published: 2007

43. 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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44. Improved lead and bismuth (n,γ) cross sections and their astrophysical impact

Author: G. Vannini, A. Pavlik, S. David, C. Domingo-Pardo, G. Tagliente, M. Kerveno, R. C. Haight, L. Audouin, J. Marganiec, I. Duran, S. Andriamonje, F. Gunsing, C. Papachristodoulou, P. Cennini, Michael Wiescher, L. Perrot, W.I. Furman, P. F. Mastinu, Marco Calviani, M. C. Vincente, A. Herrera-Martinez, N. Patronis, M. Dahlfors, Alberto Mengoni, F. Voss, Cristian Massimi, C. Santos, C. Eleftheriadis, Rene Reifarth, A. Lindote, F. Becvar, M. Igashira, M. Mosconi, G. Cortes, V. Chepel, H. Álvarez, M. Embid-Segura, Yacine Kadi, P. Pavlopoulos, J. L. Tain, J. M. Quesada, D. Villamarin, P. Vaz, C. Stephan, S. O'Brien, Marco T. Pigni, P. Baumann, Nicola Colonna, J. Cox, B. Haas, Manuel Lozano, C. T. Papadopoulos, A. J. M. Plompen, M. Krtička, F. Calviño, R. Terlizzi, Laurent Tassan-Got, G. Aerts, U. Abbondanno, Roberto Capote, Alberto Ventura, Aaron Couture, Ralf Plag, W. Dridi, G. Rudolf, I. Lopes, P.A. Assimakopoulos, T. Martinez, I. Goncalves, L. Tavora, C. Paradela, S. Lukic, L. Sarchiapone, F. Neves, C. Moreau, S. Marrone, Thomas Rauscher, E. Berthoumieux, L. Ferrant, D. Karadimos, P. Rullhusen, P. E. Koehler, R. Vlastou, E. Gonzalez-Romero, K. Wisshak, S. Walter, I. Savvidis, A. Plukis, Alfredo Ferrari, R. Ferreira-Marques, Carlos Guerrero, F. Alvarez-Velarde, Heinz Oberhummer, J. Pancin, Gerald Badurek, E. Chiaveri, D. Cano-Ott, H. Leeb, E. Jericha, F. Kaeppeler, C. Pretel, K. Fujii, C. Lampoudis, P. M. Milazzo, J. Andrzejewski, Carlo Rubbia, V. Vlachoudis, E. Kossionides, Javier Praena, Michael Heil, D. Karamanis, I. Dillmann, F. Gramegna, C. Carrapiço, J. Salgado, A. Poch, 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, Física [Àrees temàtiques de la UPC], Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Monte Carlo method, Nuclear data, chemistry.chemical_element, Residus radioactius, Neutron temperature, Bismuth, Nuclear physics, Neutron capture, chemistry, Radioactive wastes, Nucleosynthesis, Neutrons--Measurements, Neutrons -- Mesurament, r-process, Neutron, Nuclear Experiment
Abstract: A series of (n,γ) neutron capture measurements on the lead isotopes and bismuth have been carried out at the CERN n TOF installation in the neutron energy range from 1 eV up to 1MeV. At n TOF, contaminations due to scattered neutrons were reduced down to a negligible level by using improved γ-ray detectors with very low neutron sensitivity. The background level has been determined precisely from a complementary measurement. Other experimental effects related to the electronic threshold in the detectors and the angular distribution of the prompt γ-rays were investigated via Monte Carlo simulations and could be taken in account in the analysis of the capture data. With this set of measurements the energy differential (n,γ) cross sections of 204,206,207Pb and 209Bi have been determined with good accuracy. The information obtained in this work becomes of interest for constraining r-process calculations and in particular for the Th/U cosmochronometer.
Published: 2007

45. Neutron resonance spectroscopy at n TOF at CERN

Author: F. Gunsing, U. Abbondanno, G. Aerts, H. Álvarez, F. Álvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, 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. 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, F. Gramegna, C. Guerrero, B. Haas, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, E. Jericha, F. Käppeler, Y. Kadi, D. Karadimos, D. Karamanis, M. Kerveno, P. Koehler, 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, J. Praena, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santos, 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, 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, Large Hadron Collider, Astrophysics::High Energy Astrophysical Phenomena, Neutron stimulated emission computed tomography, Nuclear Theory, Nuclear structure, Nuclear data, Neutron scattering, Neutrons -- Seccions, Nuclear physics, Física::Astronomia i astrofísica [Àrees temàtiques de la UPC], Physics::Accelerator Physics, Neutron, Neutron resonance, Atomic physics, Spectroscopy, Nuclear Experiment, Excitation
Abstract: Neutron resonance spectroscopy plays an important role in the investigation of neutron induced reaction cross sections and nuclear structure in the MeV excitation range. Neutron time-of-flight facilities are the most used installations to explore neutron resonances. In this paper we describe the basic features of neutron resonance spectroscopy together with recent results from the time-of-flight facility n TOF at CERN.
Published: 2007

46. Resonance capture cross section of 207Pb

Author: C. Domingo Pardo, U. Abbondanno, G. Aerts, H. Álvarez Pol, F. Alvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Becvár, E. Berthoumieux, S. Bisterzo, F. Calviño, 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, R. Dolfini, 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, S. Marrone, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, M. Oshima, S. O'Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulos, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, 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, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, H. Wendler, M. Wiescher, K. Wisshak, VANNINI, GIANNI, 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, 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), C. Domingo-Pardo, U. Abbondanno, G. Aert, H. Álvarez-Pol, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulo, L. Audouin, G. Badurek, P. Baumann, F. Becvár, E. Berthoumieux, S. Bisterzo, F. Calviño, 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, R. Dolfini, 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, S. Marrone, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neve, H. Oberhummer, M. Oshima, S. O'Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulo, C. Paradela, N. Patroni, A. Pavlik, P. Pavlopoulo, L. Perrot, 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, and K. Wisshak(n_TOF Collaboration)
Subjects: 25.40.Lw, 27.80.+w, 97.10.Cv, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Nuclear Physics - Experiment, S-PROCESS AND R-PROCESS, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment (nucl-ex), NEUTRON TIME OF FLIGHT, Nuclear Experiment, NEUTRON CAPTURE CROSS SECTION
Abstract: The radiative neutron capture cross section of 207Pb has been measured at the CERN neutron time of flight installation n_TOF using the pulse height weighting technique in the resolved energy region. The measurement has been performed with an optimized setup of two C6D6 scintillation detectors, which allowed us to reduce scattered neutron backgrounds down to a negligible level. Resonance parameters and radiative kernels have been determined for 16 resonances by means of an R-matrix analysis in the neutron energy range from 3 keV to 320 keV. Good agreement with previous measurements was found at low neutron energies, whereas substantial discrepancies appear beyond 45 keV. With the present results, we obtain an s-process contribution of 77(8)% to the solar abundance of 207Pb. This corresponds to an r-process component of 23(8)%, which is important for deriving the U/Th ages of metal poor halo stars., 7 pages, 3 figures, to be published in Phys. Rev. C
Published: 2006

47. The 139La(n,gamma) cross section: key for the onset of the s process

Author: R. TERLIZZI, U. ABBONDANNO, G. AERTS, H. ALVAREZ, F. ALVAREZ VELARDE, S. ANDRIAMONJE, J. ANDRZEJEWSKI, P. ASSIMAKOPOULOS, L. AUDOUIN, G. BADUREK, P. BUMAN, F. BECVAR, E. BERTOUMIEUX, M. CALVIANI, F. CALVINO, D. CANO OTT, R. CAPOTE, A. CARRILLO DE ALBORNOZ, P. CENNINI, VCHEPEL, E. CHIAVERI, N. COLONNA, G. CORTES, A. COUTURE, J. COX, M. DAHLFORS, S. DAVID, I. DILLMAN, 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. GONZALES 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. KAPPELER, D. KARAMANIS, D. KARADIMOS, M. KERVENO, V. KETLEROV, P. KOEHLER, V. KOLNOVALOV, E. KOSSIONIDES, M. KRTICKA, C. LAMBOUDIS, H. LEEB, A. LINDOTE, I. LOPES, M. LOZANO, S. LUKIC, J. MARGANIEC, L. MARQUES, S. MARRONE, 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, P. VAZ, A. VENTURA, D. VILLARMARIN, M. C. VINCENTE, V. VLACHOUDIS, R. VLASTOU, F. VOSS, S. WALTER, H. WENDLER, M. WIESCHER, K. WISSHAK, MASSIMI, CRISTIAN, VANNINI, GIANNI, R.TERLIZZI, U.ABBONDANNO, G.AERTS, H.ALVAREZ, F.ALVAREZ-VELARDE, S.ANDRIAMONJE, J.ANDRZEJEWSKI, P.ASSIMAKOPOULOS, L.AUDOUIN, G.BADUREK, P.BUMAN, F.BECVAR, E.BERTOUMIEUX, M.CALVIANI, F.CALVINO, D.CANO-OTT, R.CAPOTE, A.CARRILLO DE ALBORNOZ, P. CENNINI, VCHEPEL, E.CHIAVERI, N.COLONNA, G.CORTES, A.COUTURE, J.COX, M.DAHLFORS, S.DAVID, I.DILLMAN, 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.GONZALES-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.KAPPELER, D.KARAMANIS, D.KARADIMOS, M.KERVENO, V.KETLEROV, P.KOEHLER, V.KOLNOVALOV, E.KOSSIONIDES, M.KRTICKA, C.LAMBOUDIS, H.LEEB, A.LINDOTE, I.LOPES, M.LOZANO, S.LUKIC, J.MARGANIEC, L.MARQUES, S.MARRONE, 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, G.VANNINI, P.VAZ, A.VENTURA, D.VILLARMARIN, M.C.VINCENTE, V.VLACHOUDIS, R.VLASTOU, F.VOSS, S.WALTER, H.WENDLER, M.WIESCHER, and K.WISSHAK
Subjects: Nuclear Theory, Nuclear Physics - Experiment, Nuclear Experiment
Abstract: The nuclear resonance parameters and the capture cross section of the neutron magic isotope 139La has been measured n_TOF. The description of the experimental apparata is followed by the data analysis procedures. We extracted the resonance parameters, the main nuclear quantities such as the resonance integral, the average gamma widths for s- and p-waves, the nuclear level densities and the neutron strength functions. These results represent a signifcant improvement over previous data. The deduced Maxwellian-averaged capture cross sections are important for the interpretation of the most recent spectroscopic observations in low metallicity stars. The nuclear resonance parameters and the capture cross section of the neutron magic isotope 139La has been measured n_TOF. The description of the experimental apparata is followed by the data analysis procedures. We extracted the resonance parameters, the main nuclear quantities such as the resonance integral, the average gamma widths for s- and p-waves, the nuclear level densities and the neutron strength functions. These results represent a signifcant improvement over previous data. The deduced Maxwellian-averaged capture cross sections are important for the interpretation of the most recent spectroscopic observations in low metallicity stars.
Published: 2006

48. New measurement of neutron capture resonances inBi209

Author: S. David, A. Pavlik, G. Tagliente, C. Domingo-Pardo, M. Oshima, W.I. Furman, J. Andrzejewski, M. Rosetti, E. Gonzalez-Romero, Carlo Rubbia, A. Lindote, A. Plukis, A. J. M. Plompen, V. Vlachoudis, P. E. Koehler, V. Chepel, M. Dahlfors, P. Baumann, L. Perrot, D. Karamanis, G. Vannini, E. Kossionides, M. Krtička, M. C. Vincente, V. Konovalov, P. Vaz, L. Ferrant, F. Calviño, G. Rudolf, I. Lopes, A. Goverdovski, Alberto Ventura, Aaron Couture, L. Sarchiapone, P. Cennini, J. Salgado, F. Käppeler, L. Fitzpatrick, M. Embid-Segura, A. Poch, V. Ketlerov, Ralf Plag, C. Moreau, E. Jericha, G. Aerts, F. Gramegna, C. Papachristodoulou, Alfredo Ferrari, R. Ferreira-Marques, I. Duran, A. Herrera-Martinez, N. Patronis, R. Vlastou, J. Marganiec, Manuel Lozano, S. Andriamonje, F. Alvarez-Velarde, M. Mosconi, J. Pancin, E. Chiaveri, G. Cortes, H. Leeb, C. T. Papadopoulos, Carlos Guerrero, D. Cano-Ott, H. Frais-Koelbl, Heinz Oberhummer, R. C. Haight, S. Isaev, I. Goncalves, Alberto Mengoni, Thomas Rauscher, I. Dillman, P. F. Mastinu, C. Stephan, S. O'Brien, Roberto Capote, W. Dridi, P.A. Assimakopoulos, Gerald Badurek, R. Dolfini, U. Abbondanno, P. M. Milazzo, F. Gunsing, F. Neves, D. Karadimos, E. Griesmayer, M. Igashira, R. Terlizzi, C. Pretel, S. Marrone, L. Audouin, R. Gallino, L. Tavora, C. Paradela, J. Cox, Michael Heil, C. Lamboudis, J. L. Tain, E. Berthoumieux, K. Fujii, P. Rullhusen, Michael Wiescher, Laurent Tassan-Got, M. Kerveno, L. Marques, A. Carrillo de Albornoz, I. Savvidis, S. Lukic, S. Walter, C. Eleftheriadis, Yacine Kadi, D. Villamarin, K. Wisshak, H. Wendler, F. Voss, Nicola Colonna, H. Alvarez-Pol, Rene Reifarth, P. Pavlopoulos, J. M. Quesada, B. Haas, and F. Bečvář
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, 7. Clean energy, 01 natural sciences, Nuclear physics, Neutron capture, 13. Climate action, Nucleosynthesis, 0103 physical sciences, Neutron cross section, r-process, Spallation, Neutron, Alpha decay, Nuclear Experiment, s-process, 010303 astronomy & astrophysics
Abstract: The neutron capture cross section of Bi-209 has been measured at the CERN n_TOF facility by employing the pulse-height-weighting technique. Improvements over previous measurements are mainly because of an optimized detection system, which led to a practically negligible neutron sensitivity. Additional experimental sources of systematic error, such as the electronic threshold in the detectors, summing of gamma-rays, internal electron conversion, and the isomeric state in bismuth, have been taken into account. gamma-Ray absorption effects inside the sample have been corrected by employing a nonpolynomial weighting function. Because Bi-209 is the last stable isotope in the reaction path of the stellar s-process, the Maxwellian averaged capture cross section is important for the recycling of the reaction flow by alpha decays. In the relevant stellar range of thermal energies between kT=5 and 8 keV our new capture rate is about 16 presently accepted value used for nucleosynthesis calculations. At this low temperature an important part of the heavy Pb-Bi isotopes are supposed to be synthesized by the s-process in the He shells of low mass, thermally pulsing asymptotic giant branch stars. With the improved set of cross sections we obtain an s-process fraction of 19 +/- 3 residual of 81 +/- 3 is also of relevance for the design of accelerator driven systems based on a liquid metal Pb/Bi spallation target.
Published: 2006

49. Neutron capture cross section ofTh232measured at the n_TOF facility at CERN in the unresolved resonance region up to 1 MeV

Author: Roberto Capote, P.A. Assimakopoulos, R. Vlastou, E. Berthoumieux, J. Marganiec, S. Andriamonje, E. Chiaveri, P. F. Mastinu, F. Gramegna, L. Tavora, L. Sarchiapone, M. Oshima, J. Andrzejewski, P. Pavlopoulos, A. J. M. Plompen, G. Aerts, C. T. Papadopoulos, V. Chepel, M. C. Vincente, Christoph A. Stephan, Carlo Rubbia, M. Embid-Segura, V. Vlachoudis, G. Rudolf, I. Lopes, E. Kossionides, S. David, Manuel Lozano, P. Baumann, G. Vannini, A. Herrera-Martinez, N. Patronis, D. Villamarin, F. Käppeler, C. Pretel, S. Isaev, P. Rullhusen, Marco T. Pigni, J. Pancin, G. Taliente, James L. Cox, A. Carrillo de Albornoz, Alberto Mengoni, L. Ferrant, L. Fitzpatrick, E. Gonzalez-Romero, I. Duran, Corrie S. Moreau, S. Walter, A. Plukis, K. Wisshak, H. Frais-Koelbl, I. Savvidis, J. Salgado, I. Dillman, E. Jericha, P. Cennini, L. Marques, A. Poch, Masayuki Igashira, Michael Heil, M. Krtička, K. Fujii, M. Mosconi, V. Ketlerov, H. Wendler, P. E. Koehler, L. Perrot, S. O'Brien, Ralf Plag, F. Neves, P. M. Milazzo, F. Gunsing, R. Ferreira-Marques, Alfredo Ferrari, R. Terlizzi, Yacine Kadi, E. Griesmayer, A. Lindote, R. C. Haight, D. Karamanis, A. Goverdovski, F. Alvarez-Velarde, F. Calviño, H. Leeb, Gerald Badurek, R. Dolfini, M. Rosetti, L. Audouin, W.I. Furman, C. Eleftheriadis, D. Cano-Ott, Thomas Rauscher, D. Karadimos, C. A. Papachristodoulou, Michael Wiescher, Carlos Guerrero, U. Abbondanno, Heinz Oberhummer, V. Konovalov, C. Paradela, S. Lukic, F. Voss, F. Becvar, Nicola Colonna, Rene Reifarth, J. M. Quesada, L. Tassan-Got, B. Haas, W. Dridi, M. Dahlfors, P. Vaz, Isabel S. Gonçalves, Alberto Ventura, Aaron Couture, A. Pavlik, S. Marrone, C. Domingo-Pardo, M. Kerveno, H. Álvarez, C. Lamboudis, J. L. Tain, and G. Cortes
Subjects: Physics, Nuclear and High Energy Physics, Range (particle radiation), Large Hadron Collider, 010308 nuclear & particles physics, 7. Clean energy, 01 natural sciences, Resonance (particle physics), Nuclear physics, Cross section (physics), Neutron capture, 0103 physical sciences, Neutron cross section, Neutron, Atomic physics, Nuclear Experiment, 010306 general physics, Isotopes of thorium
Abstract: We have measured the neutron capture reaction yield of Th-232 at the neutron time-of-flight facility n_TOF at CERN in the energy range from 1 eV to 1 MeV. The average capture cross section has been extracted in the energy range from 4 keV up to 1 MeV with an overall accuracy better than 4 data. The average cross section has been expressed in terms of average resonance parameters using the partial waves l=0,1, and 2.
Published: 2006

50. Neutron cross section measurements at n_TOF for ADS related estudies

Author: S. Walter, L. Ferrant, M Embid Segura, L itzpatrick, E. Jericha, A. J. M. Plompen, Ralf Plag, I. Duran, G. Rudolf, I. Lopes, D. Villamarin, W.I. Furman, James L. Cox, M. C. Vincente, Masayuki Igashira, A. Ventura, V. Chepel, C. A. Papachristodoulou, J. Salgado, S. Lukic, A. Poch, F. Neves, P. M. Milazzo, Christoph A. Stephan, A. Herrera-Martinez, N. Patronis, Arnaud Ferrari, R. C. Haight, V. Ketlerov, Alberto Mengoni, G. Vannini, C. Paradela, M Krti ka, Carlos Guerrero, B. Haas, L. Tavora, Heinz Oberhummer, S. Isaev, F. Voss, L. Audouin, M. Oshima, A. Carrillo de Albornoz, J. Andrzejewski, F. Gunsing, U. Abbondanno, Manuel Lozano, Nicola Colonna, Corrie S. Moreau, F Be vá, H. Álvarez, Cristian Massimi, Vasilis Vlachoudis, C. Pretel, M. Dahlfors, P. Pavlopoulos, C. Lamboudis, J. L. Tain, F. Gramegna, I. Savvidis, P. Vaz, H Frais-Kölbl, W. Dridi, N. Bustreo, G. Cortes, E. Griesmayer, P. Rullhusen, Rene Reifarth, L. Perrot, D. Cano-Ott, Aaron Couture, K. Wisshak, M Wiescherand, S. O`Brien, V. Konovalov, P. E. Koehler, Thomas Rauscher, P aumann, S. David, J. M. Quesada, C. T. Papadopoulos, L. Tassan-Got, J. Pancin, Roberto Capote, P.A. Assimakopoulos, C. Rubbia, D. Karadimos, G. Tagliente, Isabel S. Gonçalves, S. Marrone, A. Lindote, R. Vlastou, E. Berthoumieux, M. Kerveno, A. Pavlik, C. Domingo-Pardo, E. González-Romero, H. Wendler, A. Goverdovski, F. Alvarez-Velarde, Gerald Badurek, R. Dolfini, P. Cennini, K. Fujii, M. Rosetti, H. Leeb, M. Mosconi, R. Terlizzi, L. Marques, L. Sarchiapone, Matthias Heil, Y. Kadi, F. Käppeler, E. Kossionides, G. Aerts, R. Gallino, J. Marganiec, S. Andriamonje, E. Chiaveri, P. F. Mastinu, D. Karamanis, I. Dillmann, A. Plukis, F. Calviño, R. Ferreira-Marques, C. Eleftheriadis, 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: History, Astrofísica nuclear, Neutron cross sections, Nuclear transmutation, Nuclear engineering, Nuclear Theory, Nuclear physics, Neutrons -- Seccions, Education, Radiació ionitzant -- Mesures de seguretat, Radioactive wastes, Neutron cross section, Nuclear astrophysics, Neutron, Nuclear Experiment, Physics, Large Hadron Collider, Física [Àrees temàtiques de la UPC], Time-of-flight mass spectrometry, Radioactive waste, Neutron radiation, Waste disposal, Residus radioactius, Computer Science Applications, Shielding (Radiation), Physics::Accelerator Physics, Física nuclear, Nucleon
Abstract: A neutron Time-of-Flight facility (n_TOF) is available at CERN since 2001. The innovative features of the neutron beam, in particular the high instantaneous flux, the wide energy range, the high resolution and the low background, make this facility unique for measurements of neutron induced reactions relevant to the field of Emerging Nuclear Technologies, as well as to Nuclear Astrophysics and Fundamental Nuclear Physics. The scientific motivations that have led to the construction of this new facility are here presented. The main characteristics of the n_TOF neutron beam are described, together with the features of the experimental apparata used for cross-section measurements. The main results of the first measurement campaigns are presented. Preliminary results of capture cross-section measurements of minor actinides, important to ADS project for nuclear waste transmutation, are finally discussed.
Published: 2006

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