Towards the high-accuracy determination of the ²³⁸U fission cross section at the threshold region at CERN - N-TOF

Author(s)

M. Diakaki, L. Audouin, E. Berthoumieux, M. Calviani, N. Colonna, E. Dupont, I. Duran, F. Gunsing, E. Leal-Cidoncha, C. Le Naour, L. S. Leong, M. Mastromarco, C. Paradela, D. Tarrio, L. Tassan-Got, G. Aerts, S. Altstadt, H. Alvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, G. Badurek, M. Barbagallo, P. Baumann, V. Becares, F. Becvar, F. Belloni, B. Berthier, J. Billowes, V. Boccone, D. Bosnar, M. Brugger, F. Calvino, D. Cano-Ott, R. Capote, C. Carrapio, P. Cennini, F. Cerutti, E. Chiaveri, M. Chin, G. Cortes, M. A. Cortes-Giraldo, L. Cosentino, A. Couture, J. Cox, S. David, I. Dillmann, C. Domingo-Pardo, R. Dressler, W. Dridi, C. Eleftheriadis, M. Embid-Segura, L. Ferrant, A. Ferrari, P. Finocchiaro, K. Fraval, K. Fujii, W. Furman, S. Ganesan, A. R. Garcia, G. Giubrone, M. B. Gomez-Hornillos, I. F. Goncalves, E. Gonzalez-Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, P. Gurusamy, R. Haight, M. Heil, S. Heinitz, M. Igashira, S. Isaev, D. G. Jenkins, E. Jericha, Y. Kadi, F. Kaeppeler, D. Karadimos, D. Karamanis, M. Kerveno, V. Ketlerov, N. Kivel, M. Kokkoris, V. Konovalov, M. Krticka, J. Kroll, C. Lampoudis, C. Langer, C. Lederer, H. Leeb, S. Lo Meo, R. Losito, M. Lozano, A. Manousos, J. Marganiec, T. Martinez, S. Marrone, C. Massimi, P. Mastinu, E. Mendoza, A. Mengoni, P. M. Milazzo, F. Mingrone, M. Mirea, W. Mondelaers, C. Moreau, M. Mosconi, A. Musumarra, S. O'Brien, J. Pancin, N. Patronis, A. Pavlik, P. Pavlopoulos, J. Perkowski, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, L. Plukis, A. Poch, C. Pretel, J. Praena, J. Quesada, T. Rauscher, R. Reifarth, A. Riego, F. Roman, G. Rudolf, C. Rubbia, P. Rullhusen, J. Salgado, C. Santos, L. Sarchiapone, R. Sarmento, A. Saxena, P. Schillebeeckx, S. Schmidt, D. Schumann, C. Stephan, G. Tagliente, J. L. Tain, L. Tavora, R. Terlizzi, A. Tsinganis, S. Valenta, G. Vannini, V. Variale, P. Vaz, A. Ventura, R. Versaci, M. J. Vermeulen, D. Villamarin, M. C. Vincente, V. Vlachoudis, R. Vlastou, F. Voss, A. Wallner, S. Walter, T. Ware, M. Weigand, C. Weiss, M. Wiesher, K. Wisshak, T. Wright, P. Zugec

Abstract

The U-238 fission cross section is an international standard beyond 2 MeV where the fission plateau starts. However, due to its importance in fission reactors, this cross-section should be very accurately known also in the threshold region below 2 MeV. The U-238 fission cross section has been measured relative to the U-235 fission cross section at CERN - n_TOF with different detection systems. These datasets have been collected and suitably combined to increase the counting statistics in the threshold region from about 300 keV up to 3 MeV. The results are compared with other experimental data, evaluated libraries, and the IAEA standards.

Organisation(s)

Isotope Physics

External organisation(s)

French Alternative Energies and Atomic Energy Commission (CEA), Centre National De La Recherche Scientifique (CNRS), European Organization for Nuclear Research (CERN), Istituto Nazionale di Fisica Nucleare (INFN), Roma, Universidade de Santiago de Compostela (USC), Japan Atomic Energy Agency, Commiss European Communities, Joint Res Ctr, Inst Reference Mat & Measurements, Uppsala University, Johann Wolfgang Goethe-Universität Frankfurt am Main, Centro de Investigaciones Energeticas Medioambientales y Tecnológica, University of Lodz, Technische Universität Wien, Centre National de la Recherche Scientifique (CNRS), Strasbourg , Charles University Prague, University of Manchester, University of Zagreb, Universidad Politécnica de Madrid, International Atomic Energy Agency (IAEA), Universidade de Lisboa, Universitat Politècnica de Catalunya, Universidad de Sevilla, University of Notre Dame, Karlsruher Institut für Technologie, Instituto de Física Corpuscular (IFIC), Paul Scherrer Institute, Aristotle University of Thessaloniki, Joint Institute for Nuclear Research, Bhabha Atomic Research Center, Institute of Physics and Power Engineering (IPPE), Los Alamos National Laboratory, Tokyo Institute of Technology (TIT), York University, University of Ioannina, National Technical University of Athens (NTUA), Università degli Studi di Salerno, University of Bologna, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, Università degli Studi di Catania, University of Hertfordshire, Universität Basel, Australian National University

No. of pages

6

DOI

https://doi.org/10.1051/epjconf/201611102002

Publication date

2016

Peer reviewed

Yes

Austrian Fields of Science 2012

103014 Nuclear physics

Keywords

ASJC Scopus subject areas

General Physics and Astronomy

Portal url

https://ucrisportal.univie.ac.at/en/publications/00fa2a92-7d03-4de2-8363-bb217965d70e