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

Karadimos, D., Vlastou, R., Ioannidis, K., Demetriou, P., Diakaki, M., Vlachoudis, V., Pavlopoulos, P., Konovalov, V.Y., Abbondanno, U., Aerts, G., Álvarez, H., Álvarez-Velarde, F., Andriamonje, S.A., Andrzejewski, J., Assimakopoulos, P.A., Audouin, L., Badurek, G., Baumann, P., Bečvář, F., Berthoumieux, E., Calviño, F., Cano-Ott, D., Capote, R., Carrillo De Albornoz, A., Chepel, V.Y., Chiaveri, E., Colonna, N., Cortés, G., Couture, A.J., Cox, J.M., David, S., Dolfini, R., Domingo-Pardo, C., Dorochenko, A., Dridi, W., Durán, I., Eleftheriadis, C.A., Embid-Segura, M., Ferrant, L., Ferrari, A.N., Ferreira-Marques, R., Fitzpatrick, L., Frais-Köelbl, H., Fuji, K., Furman, W.I., Gonçalves, I. F., Gallino, R., Cennini, P., González-Romero, E.M., Goverdovski, A. A., Gramegna, F., Griesmayer, E., Guerrero, C., Gunsing, F., Haas, B., Haight, R.C., Heil, M., Herrera-Martínez, A., Igashira, M., Isaev, S. G., Jericha, E., Kadi, Y., Käppeler, F., Karamanis, D., Kerveno, M., Ketlerov, V. V., Koehler, P. E., Kolokolov, D.I., Krtička, M., Lamboudis, C., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Lukić, S., Marganiec, J., Marques, L., Marrone, S., Massimi, C., Mastinu, P.F., Mengoni, A., Milazzo, P.M., Moreau, C., Mosconi, M., Neves, F., Oberhummer, H., O'Brien, S., Oshima, M., Pancin, J., Papadopoulos, C., Paradela, C., Patronis, N.E., Pavlik, A., Perrot, L., Plag, R., Plompen, A.J.M., Plukis, A., Poch, A., Pretel, C., Quesada, J.M., Rauscher, T., Reifarth, R., Rosetti, M., Rubbia, C., Rudolf, G., Rullhusen, P., Salgado, J., Sarchiapone, L., Savvidis, I., Sedysheva, M.V., Stamoulis, K. C., Stephan, C.C., Tagliente, G., Taín, J. L., Tassan-Got, L., Távora, L.M.N., Terlizzi, R., Tsinganis, A., Vannini, G., Vaz, P.D., Ventura, A., Villamarín, D., Vincente, M. C., Voss, F., Wendler, H., Wiescher, M.C. and Wisshak, K. (2014) Neutron-induced fission cross section of U 234 measured at the CERN n-TOF facility. Physical Review C (nuclear physics) (4). ISSN 2469-9985
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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.
Item Type Article
Date Deposited 29 May 2025 09:15
Last Modified 29 May 2025 09:15

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