Analysis of Godiva-IV Delayed-Critical and Static Super-Prompt-Critical Conditions

Conference · Sun May 03 04:00:00 EDT 2009

OSTI ID:956435

Mosteller, Russell D. ^[1]; Goda, Joetta M. ^[1]

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1. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Super-prompt-critical burst experiments were conducted on the Godiva-IV assembly at Los Alamos National Laboratory from the 1960s through 2005. Detailed and simplified benchmark models have been constructed for four delayed-critical experiments and for the static phase of a super-prompt-critical burst experiment. In addition, a two-dimensional cylindrical model has been developed for the super-prompt-critical condition. Criticality calculations have been performed for all of those models with four modern nuclear data libraries: ENDFIB-VI, ENDF/8-VII.0, JEFF-3.1, and JENDL-3.3. Overall, JENDL-3.3 produces the best agreement with the reference values for k_eff.

• 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: AC52-06NA25396
• OSTI ID: 956435
• Report Number(s): LA-UR--09-01007; LA-UR--09-1007
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BENCHMARKS
CRITICALITY
Criticality Calculations
GODIVA REACTOR
K-Effective
LANL
MATHEMATICAL MODELS
NUCLEAR DATA COLLECTIONS
Nuclear Criticality Safety Program (NCSP)
REACTOR KINETICS
Super-Prompt-Critical Burst Experiments