Validation of MCNP4A for UO{sub 2}-ThO{sub 2} systems in water
- Westinghouse Savannah River Site, Aikens, SC (United States)
The Receiving Basin for Offsite Fuel (RBOF) at the Savannah River Site is a facility for receipt and storage of many varieties of spent nuclear fuels from off-site reactors. The purpose of this paper is to validate MCNP4A with the ENDF/B-V pointwise cross-section set with two sets of critical experiments using UO{sub 2}-ThO{sub 2} fuel rods in water and thereby develop a bias for use in the nuclear criticality safety studies involving Elk River Reactor (ERR) and Dresden fuels (also containing UO{sub 2}-ThO{sub 2}) stored in RBOF. Five Thorium Uranium Physics Experiments (TUPE), as documented in the Babcock & Wilcox (BAW-1191) report, and five Consolidated Edison Thorium Reactor (CETR) Criticals, as documented in the Babcock & Wilcox (BAW-1191) report, are identified as having the constituents desired for this validation as well as sufficient experimental details to allow accurate construction of MCNP4A calculation models. The validation has been performed on IBM RISC 6000 machines with the configuration-controlled version of the MCNP4A code. Of particular interest is an evaluation of the state of ENDF/B-V {sup 232}Th cross-section data for criticality safety studies.
- OSTI ID:
- 426411
- Report Number(s):
- CONF-961103-; ISSN 0003-018X; TRN: 96:006307-0133
- Journal Information:
- Transactions of the American Nuclear Society, Vol. 75; Conference: Winter meeting of the American Nuclear Society (ANS) and the European Nuclear Society (ENS), Washington, DC (United States), 10-14 Nov 1996; Other Information: PBD: 1996
- Country of Publication:
- United States
- Language:
- English
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