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Title: Recent advances in nuclear fission theory: pre- and post-scission physics

Recent advances in the modeling of the nuclear fission process for data evaluation purposes are reviewed. In particular, it is stressed that a more comprehensive approach to fission data is needed if predictive capability is to be achieved. The link between pre- and post-scission data is clarified, and a path forward to evaluate those data in a consistent and comprehensive manner is presented. Two examples are given: (i) the modeling of fission cross-sections in the R-matrix formalism, for which results for Pu isotopes from 239 to 242 are presented; (ii) the modeling of prompt fission neutrons in the Monte Carlo Hauser-Feshbach framework. Results for neutron-induced fission on {sup 235}U are discussed.
Authors:
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Publication Date:
OSTI Identifier:
1012636
Report Number(s):
LA-UR-10-03259; LA-UR-10-3259
TRN: US1102347
DOE Contract Number:
AC52-06NA25396
Resource Type:
Conference
Resource Relation:
Conference: Proceedings of the International Conference on Nuclear Data for Science & Technology ND2010 ; April 26, 2010 ; Jeju, Island, Korea
Research Org:
Los Alamos National Laboratory (LANL)
Sponsoring Org:
DOE
Country of Publication:
United States
Language:
English
Subject:
73; CROSS SECTIONS; EVALUATION; FISSION; FISSION NEUTRONS; PHYSICS; R MATRIX; SIMULATION