%ATalou, Patrick[Los Alamos National Laboratory]
%AKawano, Toshihiko[Los Alamos National Laboratory]
%ABouland, Olivier[Los Alamos National Laboratory]
%AMoller, Peter[Los Alamos National Laboratory]
%AChadwick, Mark B[Los Alamos National Laboratory]
%ALynn, J E[CEA DEN FRANCE]
%D2010%K73; CROSS SECTIONS; EVALUATION; FISSION; FISSION NEUTRONS; PHYSICS; R MATRIX; SIMULATION
%MOSTI ID: 1012636
%PMedium: ED
%TRecent advances in nuclear fission theory: pre- and post-scission physics
%Uhttp://www.osti.gov/scitech//servlets/purl/1012636-9eiCV1/
%XRecent 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.
%0Conference
%@LA-UR-10-03259; LA-UR-10-3259; TRN: US1102347
United StatesTRN: US1102347Thu Sep 15 07:20:23 EDT 2011LANLEnglish