Title: Neutron-induced fission cross section of 240,242Pu up to En = 3 MeV
Authors: SALVADOR CASTINEIRA PAULABRYS TOMASZHAMBSCH Franz-JosefOBERSTEDT StephanPRETEL C.VIDALI Marzio
Citation: NUCLEAR DATA SHEETS vol. 119 p. 55-57
Publisher: ACADEMIC PRESS INC ELSEVIER SCIENCE
Publication Year: 2014
JRC N°: JRC92015
ISSN: 0090-3752
URI: http://www.sciencedirect.com/science/article/pii/S0090375214005511
http://dx.doi.org/10.1016/j.nds.2014.08.017
http://publications.jrc.ec.europa.eu/repository/handle/JRC92015
DOI: 10.1016/j.nds.2014.08.017
Type: Articles in periodicals and books
Abstract: The neutron-induced fission cross sections of 240,242Pu have been measured at JRC-IRMM with incident neutron energy from 0.2 MeV up to 3 MeV. A Twin-Frisch Grid Ionization Chamber (TFGIC) has been used in a back-to-back geometry. The measurements have been performed using the secondary standards 237Np and 238U as a reference. The purity of the plutonium samples was 99.89% for 240Pu and 99.97% for 242Pu. The results obtained follow the ENDF/B-VII.1 evaluation for 240Pu, but some discrepancies are visible around En = 1 MeV for 242Pu. In addition, the spontaneous fission half-life has been measured for both isotopes.
JRC Directorate:Health, Consumers and Reference Materials

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