Neutron-induced fission cross section of U 234 measured at the CERN n-TOF facility

D. Karadimos, R. Vlastou, K. Ioannidis, P. Demetriou, M. Diakaki, V. Vlachoudis, P. Pavlopoulos, V.Y. Konovalov, U. Abbondanno, G. Aerts, H. Álvarez, F. Álvarez-Velarde, S.A. Andriamonje, J. Andrzejewski, P.A. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Bečvář, E. BerthoumieuxF. Calviño, D. Cano-Ott, R. Capote, A. Carrillo De Albornoz, V.Y. Chepel, E. Chiaveri, N. Colonna, G. Cortés, A.J. Couture, J.M. Cox, S. David, R. Dolfini, C. Domingo-Pardo, A. Dorochenko, W. Dridi, I. Durán, C.A. Eleftheriadis, M. Embid-Segura, L. Ferrant, A.N. Ferrari, R. Ferreira-Marques, L. Fitzpatrick, H. Frais-Köelbl, K. Fuji, W.I. Furman, I. F. Gonçalves, R. Gallino, P. Cennini, E.M. González-Romero, A. A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, F. Gunsing, B. Haas, R.C. Haight, M. Heil, A. Herrera-Martínez, M. Igashira, S. G. Isaev, E. Jericha, Y. Kadi, F. Käppeler, D. Karamanis, M. Kerveno, V. V. Ketlerov, P. E. Koehler, D.I. Kolokolov, M. Krtička, C. Lamboudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukić, J. Marganiec, L. Marques, S. Marrone, C. Massimi, P.F. Mastinu, A. Mengoni, P.M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O'Brien, M. Oshima, J. Pancin, C. Papadopoulos, C. Paradela, N.E. Patronis, A. Pavlik, L. Perrot, R. Plag, A.J.M. Plompen, A. Plukis, A. Poch, C. Pretel, J.M. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, L. Sarchiapone, I. Savvidis, M.V. Sedysheva, K. C. Stamoulis, C.C. Stephan, G. Tagliente, J. L. Taín, L. Tassan-Got, L.M.N. Távora, R. Terlizzi, A. Tsinganis, G. Vannini, P.D. Vaz, A. Ventura, D. Villamarín, M. C. Vincente, F. Voss, H. Wendler, M.C. Wiescher, K. Wisshak

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14 Citations (Scopus)


The neutron-induced fission cross section of U234 has been measured at the CERN n-TOF facility relative to the standard fission cross section of U235 from 20 keV to 1.4 MeV and of U238 from 1.4 to 200 MeV. A fast ionization chamber (FIC) was used as a fission fragment detector with a detection efficiency of no less than 97%. The high instantaneous flux and the low background characterizing the n-TOF facility resulted in wide-energy-range data (0.02 to 200 MeV), with high energy resolution, high statistics, and systematic uncertainties bellow 3%. Previous investigations around the energy of the fission threshold revealed structures attributed to β-vibrational levels, which have been confirmed by the present measurements. Theoretical calculations have been performed, employing the talys code with model parameters tuned to fairly reproduce the experimental data.
Original languageEnglish
Article number 044606
Number of pages11
JournalPhysical Review C (nuclear physics)
Issue number4
Publication statusPublished - 15 Apr 2014


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