TITLE

Influence of fission fragment excitation energy on prompt fission neutron observables

AUTHOR(S)
Lemaire, S.; Talou, P.; Kawano, T.; Chadwick, M. B.; Madland, D. G.
PUB. DATE
November 2005
SOURCE
AIP Conference Proceedings;2005, Vol. 798 Issue 1, p213
SOURCE TYPE
Conference Proceeding
DOC. TYPE
Article
ABSTRACT
We have implemented a Monte-Carlo simulation of the statistical decay of fission fragments by sequential neutron emission. In this presentation, we report on some numerical results obtained for the spontaneous fission of 252Cf and neutron-induced fission of 235U at 0.53 MeV neutron energy, and compare them to the results of the Los Alamos model for the calculation of the average number of prompt fission neutrons v and the prompt fission neutrons spectrum N(E). Within this approach, we also calculate neutron multiplicity distributions P(v) as well as neutron-neutron correlations such as the full matrix v(A, T K E). Two assumptions for partitioning the total available excitation energy among the light and heavy fragments are considered. The influence of the fission fragments excitation energy for low total kinetic energies on prompt neutron energy spectrum, multiplicity distributions and v(A, T K E) is discussed. © 2005 American Institute of Physics
ACCESSION #
18857022

 

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