Revised prompt neutron emission multiplicity distributions for Pu-236,Pu-238

摘要

The prompt neutron en-fission multiplicity distributions and average values (P-v and < v >, respectively) for nuclei which decay via spontaneous fission have been reevaluated. In the cases of Pu-236 and Pu-238, inconsistencies were found in the recommended values for P-v and < v > that were given in the most recent compilation of neutron emission multiplicity distributions from the fission of uranium and transuranium nuclides. In correcting for these inconsistencies, the values of < v > for Pu-236 and Pu-238 have now been revised to 2.07 +/- 0.13 and 2.19 +/- 0.07, respectively. The corresponding neutron emission probabilities for these two nuclei have also been revised in order to take into account the new recommended < v > values. (c) 2005 Elsevier B.V. All rights reserved.