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New calculations for critical assemblies using MCNP4B

Journal Article · · Transactions of the American Nuclear Society
OSTI ID:552490
 [1];  [1];  [1]
  1. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

A suite of 41 criticality benchmarks has been modeled using MCNP. Most of the assembly specifications were obtained from the Cross-Section Evaluation Working Group (CSEWG) and the International Criticality Safety Benchmark Evaluation Project compendiums of experimental benchmarks. A few assembly specifications were obtained from experimental papers. The suite contains thermal and fast assemblies and bare and reflected assemblies, and it emphasizes 233U, 235U, 238U and 239Pu.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
552490
Report Number(s):
CONF-971125--
Journal Information:
Transactions of the American Nuclear Society, Journal Name: Transactions of the American Nuclear Society Vol. 77; ISSN 0003-018X; ISSN TANSAO
Publisher:
American Nuclear Society
Country of Publication:
United States
Language:
English