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|Title:||Neutron-induced fission cross section of 240,242Pu up to En = 3 MeV|
|Authors:||SALVADOR CASTINEIRA PAULA; BRYS TOMASZ; HAMBSCH Franz-Josef; OBERSTEDT Stephan; PRETEL C.; VIDALI Marzio|
|Citation:||NUCLEAR DATA SHEETS vol. 119 p. 55-57|
|Publisher:||ACADEMIC PRESS INC ELSEVIER SCIENCE|
|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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