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Neutron-induced fission cross-section of 233U in the energy range 0.5 < En < 20 MeV

F. Belloni M. Calviani N. Colonna P. Mastinu P.M. Milazzo U. Abbondanno G. Aerts 1 H. Alvarez F. Alvarez-Velarde S. Andriamonje 1 J. Andrzejewski L. Audouin G. Badurek P. Baumann 2 F. Becvar E. Berthoumieux 1 F. Calvino D. Cano-Ott R. Capote C. Carrapico P. Cennini V. Chepel E. Chiaveri G. Cortes A. Couture J. Cox M. Dahlfors S. David 2 I. Dillmann C. Domingo-Pardo W. Dridi 1 I. Duran C. Eleftheriadis M. Embid-Segura Anthony Ferrari R. Ferreira-Marques K. Fujii W. Furman I. Goncalves E. Gonzalez-Romero A. Goverdovski F. Gramegna C. Guerrero F. Gunsing 1 B. Haas 3 R. Haight M. Heil A. Herrera-Martinez M. Igashira E. Jericha F. Kappeler Y. Kadi D. Karadimos D. Karamanis 3 M. Kerveno 2 P. Koehler E. Kossionides M. Krticka C. Lamboudis H. Leeb A. Lindote I. Lopes M. Lozano S. Lukic 2 J. Marganiec S. Marrone T. Martınez C. Massimi M.H. Meaze A. Mengoni C. Moreau M. Mosconi F. Neves H. Oberhummer S. O'Brien J. Pancin 1 C. Papachristodoulou C. Papadopoulos C. Paradela N. Patronis A. Pavlik P. Pavlopoulos 4 L. Perrot 1 M.T. Pigni R. Plag A. Plompen A. Plukis 1 A. Poch J. Praena C. Pretel J. Quesada T. Rauscher R. Reifarth M. Rosetti C. Rubbia G. Rudolf 2 P. Rullhusen J. Salgado C. Santos L. Sarchiapone I. Savvidis C. Stephan 5 G. Tagliente J.L. Tain L. Tassan-Got 5 L. Tavora R. Terlizzi G. Vannini P. Vaz A. Ventura D. Villamarin M.C. Vincente V. Vlachoudis R. Vlastou F. Voss S. Walter M. Wiescher K. Wisshak
Abstract : The neutron-induced fission cross-section of 233U has been measured at the CERN n TOF facility relative to the standard fission cross-section of 235U between 0.5 and 20MeV. The experiment was performed with a fast ionization chamber for the detection of the fission fragments and to discriminate against α-particles from the natural radioactivity of the samples. The high instantaneous flux and the low background of the n TOF facility result in data with uncertainties of ≈ 3%, which were found in good agreement with previous experiments. The high quality of the present results allows to improve the evaluation of the 233U(n,f) cross-section and, consequently, the design of energy systems based on the Th/U cycle.
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Submitted on : Thursday, April 21, 2011 - 12:52:37 PM
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F. Belloni, M. Calviani, N. Colonna, P. Mastinu, P.M. Milazzo, et al.. Neutron-induced fission cross-section of 233U in the energy range 0.5 < En < 20 MeV. European Physical Journal A, EDP Sciences, 2011, 47, pp.2. ⟨10.1140/epja/i2011-11002-y⟩. ⟨in2p3-00587730⟩



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