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Your search keyword '"M. C. Vicente"' showing total 2 results
Start Over Author "M. C. Vicente" Journal physical review c
2 results on '"M. C. Vicente"'

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

Author

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

Subjects
Physics, Nuclear reaction, Nuclear physics, Nuclear and High Energy Physics, Cross section (physics), Nuclear transmutation, Neutron cross section, Neutron, 7. Clean energy, Resonance (particle physics), Neutron temperature, Calorimeter
Abstract

Background: The design of new nuclear reactors and transmutation devices requires to reduce the present neutron cross section uncertainties of minor actinides. Purpose: Improvement of the 243Am(n,? ) cross section uncertainty. Method: The 243Am(n,? ) cross section has been measured at the n_TOF facility at CERN with a BaF2 total absorption calorimeter, in the energy range between 0.7 eV and 2.5 keV. Results: The 243Am(n,? ) cross section has been successfully measured in the mentioned energy range. The resolved resonance region has been extended from 250 eV up to 400 eV. In the unresolved resonance region our results are compatible with one of the two incompatible capture data sets available below 2.5 keV. The data available in EXFOR and in the literature have been used to perform a simple analysis above 2.5 keV. Conclusions: The results of this measurement contribute to reduce the 243Am(n,? ) cross section uncertainty and suggest that this cross section is underestimated up to 25% in the neutron energy range between 50 eV and a few keV in the present evaluated data libraries.

Published
2014

2. 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

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