Fission Cross-section Measurements of 233U, 245Cm and 241;243Am at CERN n_TOF Facility

M. Calviani , S. Andriamonje (1) , N. Colonna , F. Belloni , M. H. Meaze , U. Abbondanno , G. Aerts (1) , J. Andrzejewski , P. Assimakopoulo , L. Audouin (2) , G. Badurek , P. Baumann (3) , F. Becvar , E. Berthoumieux (1) , F. Calviño , D. Cano-Ott , R. Capote , A. Carrillo de Albornoz , P. Cennini , V. Chepel , E. Chiaver , G. Cortes , A. Couture , J. Cox , M. Dahlfors , S. David (2) , I. Dillman , R. Dolfini , C. Domingo-Pardo , W. Dridi (1) , I. Duran , C. Eleftheriadis , L. Ferrant (2) , Anthony Ferrari , R. Ferreira-Marques , H. Frais-Koelbl , K. Fujii , W. Furman , I. Goncalves , E. González-Romero , A. Goverdovski , F. Gramegna , E. Griesmayer , C. Guerrero , F. Gunsing , B. Haas (4) , R. Haight , M. Heil , A. Herrera-Martinez , M. Igashira , S. Isaev (2) , E. Jericha , F. Käppeler , Y. Kadi , D. Karadimos , D. Karamanis (5) , M. Kerveno (3) , V. Ketlerov , P. Koehler , V. Konovalov , E. Kossionides , M. Krticka , C. Lampoudis (1) , H. Leeb , A. Lindote , I. Lopes , M. Lozano , S. Lukic (3) , J. Marganiec , L. Marques , S. Marrone , T. Martínez , C. Massimi , P. Mastinu , A. Mengoni , P.M. Milazzo , C. Moreau , M. Mosconi , F. Neves , H. Oberhummer , S. O'Brien , M. Oshima , J. Pancin (1) , C. Papachristodoulou , C. Papadopoulos , C. Paradela , N. Patronis , A. Pavlik , P. Pavlopoulos (6) , L. Perrot (1) , M.T. Pigni , R. Plag , A. Plompen , A. Plukis (1) , A. Poch , C. Pretel , J. Praena , J. Quesada , T. Rauscher , R. Reifarth , M. Rosetti (1) , C. Rubbia , G. Rudolf , P. Rullhusen , J. Salgado , L. Sarchiapone , I. Savvidis , C. Stephan (2) , G. Tagliente , J.L. Tain , L. Tassan-Got (2) , L. Tavora , R. Terlizzi , G. Vannini , P. Vaz , A. Ventura , D. Villamarin , M.C. Vicente , V. Vlachoudis , R. Vlastou , F. Voss , S. Walter , H. Wendler , M. Wiescher , K. Wisshak

1 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers
2 IPNO - Institut de Physique Nucléaire d'Orsay
3 DRS-IPHC - Département Recherches Subatomiques
4 ACEN - Aval du cycle et Energie Nucléaire
5 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
6 Pôle Universitaire Léonard de Vinci

Neutron-induced fission cross-sections of minor actinides have been measured using the n_TOF white neutron source at CERN, Geneva, as part of a large experimental program aiming at collecting new data relevant for nuclear astrophysics and for the design of advanced reactor systems. The measurements at n_TOF take advantage of the innovative features of the n_TOF facility, namely the wide energy range, high instantaneous neutron flux and good energy resolution. Final results on the fission cross-section of 233U, 245Cm and 243Am from thermal to 20 MeV are here reported, together with preliminary results for 241Am. The measurement have been performed with a dedicated Fast Ionization Chamber (FIC), a fission fragment detector with a very high efficiency, relative to the very well known cross-section of 235U, measured simultaneously with the same detector.

Mots clés: ND2010; Nuclear Data; ENDF; n_TOF; neutron-induced fission reactions; Am; Cm

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

M. Calviani, S. Andriamonje, N. Colonna, F. Belloni, M. H. Meaze, et al.. Fission Cross-section Measurements of 233U, 245Cm and 241;243Am at CERN n_TOF Facility. Journal of the Korean Physical Society, 2011, 59, pp.1912-1915. ⟨10.3938/jkps.59.1912⟩. ⟨in2p3-00656167⟩