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Title: Use of MCNP + GADRAS in Generating More Realistic Gamma-Ray Spectra for Plutonium and HEU Objects

The ability to accurately simulate high-resolution gamma spectra from materials that emit both neutrons and gammas is very important to the analysis of special nuclear materials (SNM), e.g., uranium and plutonium. One approach under consideration has been to combine MCNP and GADRAS. This approach is expected to generate more accurate gamma ray spectra for complex three-dimensional geometries than can be obtained from one-dimensional deterministic transport simulations (e.g., ONEDANT). This presentation describes application of combining MCNP and GADRAS in simulating plutonium and uranium spectra.
Authors:
 [1] ;  [2] ;  [3]
  1. Los Alamos National Laboratory
  2. North Carolina State University
  3. Sandia National Laboratory
Publication Date:
OSTI Identifier:
1047097
Report Number(s):
LA-UR-12-23282
TRN: US1203858
DOE Contract Number:
AC52-06NA25396
Resource Type:
Conference
Resource Relation:
Conference: Nuclear Emergency Spectroscopic Analysts (NESA) 2012 meeting ; 2012-07-23 - 2012-07-27 ; Albuquerque, New Mexico, United States
Research Org:
Los Alamos National Laboratory (LANL)
Sponsoring Org:
DOE/LANL
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPES AND RADIATION SOURCES; 97 MATHEMATICAL METHODS AND COMPUTING; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; GAMMA SPECTRA; NEUTRONS; PLUTONIUM; SPECTRA; TRANSPORT; URANIUM