%AHagmann, C A
%ARandrup, J
%AVogt, R L
%D2012%K73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALGORITHMS; CHAIN REACTIONS; FISSION; FISSION PRODUCTS; FISSION YIELD; MONTE CARLO METHOD; PROMPT NEUTRONS; SIMULATION
%MOSTI ID: 1046121
%PMedium: ED; Size: PDF-file: 6 pages; size: 1.5 Mbytes
%TFREYA-a new Monte Carlo code for improved modeling of fission chains
%Uhttp://www.osti.gov/scitech//servlets/purl/1046121/
%XA new simulation capability for modeling of individual fission events and chains and the transport of fission products in materials is presented. FREYA ( Fission Yield Event Yield Algorithm ) is a Monte Carlo code for generating fission events providing correlated kinematic information for prompt neutrons, gammas, and fragments. As a standalone code, FREYA calculates quantities such as multiplicity-energy, angular, and gamma-neutron energy sharing correlations. To study materials with multiplication, shielding effects, and detectors, we have integrated FREYA into the general purpose Monte Carlo code MCNP. This new tool will allow more accurate modeling of detector responses including correlations and the development of SNM detectors with increased sensitivity.
%0Conference
%@LLNL-PROC-561431; TRN: US1203925
United StatesTRN: US1203925Wed Dec 05 12:06:47 EST 2012LLNLEnglish