Fission Cross-section Measurements of U-233, Cm-245 and Am-241,Am-243 at CERN n_TOF Facility
Author
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.
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.
Rauscher, T.
n TOF Collaboration
Attention
2299/10499
Abstract
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.