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

Calviani, M.; Andriamonje, S.; Chiaveri, E.; Vlachoudis, V.; Colonna, N.; Meaze, M. H.; Marrone, S.; Tagliente, G.; Terlizzi, R.; Belloni, F.; Abbondanno, U.; Fujii, K.; Milazzo, P. M.; Moreau, C.; Massimi, Cristian; Aerts, G.; Berthoumieux, E.; Dridi, W.; Gunsing, F.; Pancin, J.; Perrot, L.; Plukis, A.; Alvarez, H.; Duran, I.; Paradela, C.; Alvarez Velarde, F.; Cano Ott, D.; Gonzalez Romero, E.; Guerrero, C.; Martinez, T.; Villamarin, D.; Vicente, M. C.; 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.; Pigni, M. T.; Baumann, P.; Kerveno, M.; Lukic, S.; Rudolf, G.; Becvar, F.; Krticka, M.; Calvino, F.; Capote, R.; Carrillo De Albornoz, A.

doi:10.3938/jkps.59.1912

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 U-233, (245)cm and Am-243 from thermal to 20 MeV are here reported, together with preliminary results for Am-241. 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 U-235, measured simultaneously with the same detector.

M. Calviani, S. Andriamonje, E. Chiaveri, V. Vlachoudis, N. Colonna, M. H. Meaze, et al. (2011). Fission Cross-section Measurements of 233U, 245Cm and 241;243Am at CERN n_TOF Facility. JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 59, 1912-1-1912-4 [10.3938/jkps.59.1912].