Depletion of a BWR lattice using the racer continuous energy Monte Carlo code
Conference
·
OSTI ID:459218
- Knolls Atomic Power Lab., Schenectady, NY (United States)
In the past several years there has been a renewed interest in the accuracy of a new generation of lattice physics codes. Most of the time these codes are benchmarked against Monte Carlo codes only at beginning of cycle. In this paper a highly heterogeneous BWR lattice depletion benchmark problem is presented. Results of a 40% void depletion using the RACER continuous energy Monte Carlo code are also presented. Complete problem specifications are given so that comparisons with lattice physics codes or other Monte Carlo codes is possible. The RACER calculations were performed with the ENDF/B-V cross section set. Each flux calculation utilized 2.7 million histories resulting in 95% confidence intervals of {approximately}1 milli-k on the eigenvalue and {approximately}1% uncertainties on pin-wise power fractions. Timing statistics for the calculation using the vectorized RACER code averaged {approximately} 24,000 neutrons/minute on a single processor of a CRAY-C90 computer.
- OSTI ID:
- 459218
- Report Number(s):
- CONF-950420--
- Country of Publication:
- United States
- Language:
- English
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