Continuous-Estimator Representation for Monte Carlo Criticality Diagnostics
Conference
·
OSTI ID:1044093
- Los Alamos National Laboratory
An alternate means of computing diagnostics for Monte Carlo criticality calculations is proposed. Overlapping spherical regions or estimators are placed covering the fissile material with a minimum center-to-center separation of the 'fission distance', which is defined herein, and a radius that is some multiple thereof. Fission neutron production is recorded based upon a weighted average of proximities to centers for all the spherical estimators. These scores are used to compute the Shannon entropy, and shown to reproduce the value, to within an additive constant, determined from a well-placed mesh by a user. The spherical estimators are also used to assess statistical coverage.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- DOE/LANL
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1044093
- Report Number(s):
- LA-UR-12-22259; TRN: US1203327
- Resource Relation:
- Conference: 2012 ANS Annual Meeting ; 2012-06-24 - 2012-06-28 ; Chicago, Illinois, United States
- Country of Publication:
- United States
- Language:
- English
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