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        Simultaneous measurement of neutron-induced capture and fission reactions at CERN

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        10.1140_epja_i2012_12029_2.pdf (PDF, 881Kb)
        Author
        Guerrero, C.
        Berthoumieux, E.
        Cano-Ott, D.
        Mendoza, E.
        Andriamonje, S.
        Andrzejewski, J.
        Audouin, L.
        Barbagallo, M.
        Becares, V.
        Becvar, F.
        Belloni, F.
        Billowes, J.
        Brugger, M.
        Calviani, M.
        Calvino, F.
        Carrapico, C.
        Cerutti, F.
        Chiaveri, E.
        Chin, M.
        Colonna, N.
        Cortes, G.
        Cortes-Giraldo, M. A.
        Diakaki, M.
        Dillmann, I.
        Domingo-Pardo, C.
        Duran, I.
        Eleftheriadis, C.
        Fernandez-Ordonez, M.
        Ferrari, A.
        Ganesan, S.
        Giubrone, G.
        Gomez-Hornillos, M. B.
        Goncalves, I. F.
        Gonzalez-Romero, E.
        Gramegna, F.
        Griesmayer, E.
        Gunsing, F.
        Jenkins, D.
        Jericha, E.
        Kadi, Y.
        Kaeppeler, F.
        Karadimos, D.
        Kroll, J.
        Krticka, M.
        Lebbos, E.
        Lederer, C.
        Leeb, H.
        Losito, R.
        Lozano, M.
        Manousos, A.
        Marganiec, J.
        Marrone, S.
        Martinez, T.
        Massimi, C.
        Mastinu, P. F.
        Meaze, M.
        Mengoni, A.
        Milazzo, P. M.
        Paradela, C.
        Pavlik, A.
        Perkowski, J.
        Plag, R.
        Praena, J.
        Quesada, J. M.
        Rauscher, T.
        Reifarth, R.
        Roman, F.
        Rubbia, C.
        Sarmento, R.
        Tagliente, G.
        Tain, J. L.
        Tarrio, D.
        Tassan-Got, L.
        Tsinganis, A.
        Vannini, G.
        Variale, V.
        Vaz, P.
        Ventura, A.
        Vermeullen, M.
        Vlachoudis, V.
        Vlastou, R.
        Wallner, A.
        Ware, T.
        Weiss, C.
        Wright, T.
        Attention
        2299/11658
        Abstract
        The measurement of the capture cross-section of fissile elements, of utmost importance for the design of innovative nuclear reactors and the management of nuclear waste, faces particular difficulties related to the.-ray background generated in the competing fission reactions. At the CERN neutron time-of-flight facility n_TOF we have combined the Total Absorption Calorimeter (TAC) capture detector with a set of three U-235 loaded MicroMegas (MGAS) fission detectors for measuring simultaneously two reactions: capture and fission. The results presented here include the determination of the three detection efficiencies involved in the process: epsilon(TAC)(n, f), epsilon(TAC)(n, gamma) and epsilon(MGAS)(n, f). In the test measurement we have succeeded in measuring simultaneously with a high total efficiency the U-235 capture and fission cross-sections, disentangling accurately the two types of reactions. The work presented here proves that accurate capture cross-section measurements of fissile isotopes are feasible at n_TOF.
        Publication date
        2012-03
        Published in
        European Physical Journal A: Hadrons and Nuclei
        Published version
        https://doi.org/10.1140/epja/i2012-12029-2
        Other links
        http://hdl.handle.net/2299/11658
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