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Fission croos-section measurements of U-233, Cm-245 and Am-241,243 at the CERN n_TPOF facility

M. Calviani N. Colonna F. Belloni M. H. Meaze U. Abbondanno G. Aerts 1 S. Andriamonje 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
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 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.
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Submitted on : Tuesday, January 10, 2012 - 11:24:54 AM
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M. Calviani, N. Colonna, F. Belloni, M. H. Meaze, U. Abbondanno, et al.. Fission croos-section measurements of U-233, Cm-245 and Am-241,243 at the CERN n_TPOF facility. Journal of the Korean Physical Society, Korean physical society, 2011, 59, pp.1912-1915. ⟨10.3938/jkps.59.1912⟩. ⟨in2p3-00656167⟩

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