Measurement of neutron induced fission of ²³⁵U, ²³³U and ²⁴⁵Cm with the FIC detector at the CERN n_TOF facility

Author(s)

Marco Calviani, Dimitrios Karadimos, U. Abbondanno, G. Aerts, H. Alvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Becvar, E. Berthoumieux, F. Calvino, D. Cano-Ott, R. Capote, C. Carrapico, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillmann, C. Domingo-Pardo, W. Dridi, I. Duran, C. Eleftheriadis, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marques, K. Fujii, W. Furman, I. Goncalves, E. Gonzalez-Romero, F. Gramegna, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, E. Jericha, F. Kaeppeler, Y. Kadi, D. Karamanis, M. Kerveno, P. Koehler, E. Kossionides, M. Krticka, C. Lampoudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, S. Marrone, T. Martinez, C. Massimi, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O'Brien, J. Pancin, C. Papachristodoulou, C. Papadopoulos, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, M. Pigni, R. Plag, A. Plompen, A. Plukis, A. Poch, J. Praena, C. Prete, J. Quesada, T. Rauscher, R. Reifarth, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, C. Santos, L. Sarchiapone, I. Savvidis, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan-Got, 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

A series of measurements of neutron induced fission cross section of

various TRU isotopes have been performed at the CERN n_TOF spallation

neutron facility, in the energy range from thermal to nearly 250 MeV.

The experimental apparatus consists in a fast ionization chamber (FIC),

used as a fission fragment detector with a high efficiency. Good

discrimination between alphas and fission fragments can be obtained with

a simple amplitude threshold. In order to allow the monitoring of the

neutron beam and to extract the n_TOF neutron flux, the well known cross

section of the ²³⁵U(n,f) reaction, considered as a fission

standard, has been used. Preliminary results for the cross section are

shown for some selected isotopes such as ²³⁵U, ²³³U and ²⁴⁵Cm in the energy range from 0.050 eV to about 2 MeV.

Organisation(s)

Isotope Physics

External organisation(s)

Istituto Nazionale di Fisica Nucleare (INFN), Roma

Pages

335-338

No. of pages

4

DOI

https://doi.org/10.1051/ndata:07750

Publication date

2008

Austrian Fields of Science 2012

103014 Nuclear physics

Portal url

https://ucrisportal.univie.ac.at/en/publications/b34ae400-827a-4364-915b-5a8d26f8f62e