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HELIOS calculations for UO{sub 2} lattice benchmarks

Conference ·
DOI:https://doi.org/10.2172/307944· OSTI ID:674735
Calculations for the ANS UO{sub 2} lattice benchmark have been performed with the HELIOS lattice-physics code and six of its cross-section libraries. The results obtained from the different libraries permit conclusions to be drawn regarding the adequacy of the energy group structures and of the ENDF/B-VI evaluation for {sup 238}U. Scandpower A/S, the developer of HELIOS, provided Los Alamos National Laboratory with six different cross section libraries. Three of the libraries were derived directly from Release 3 of ENDF/B-VI (ENDF/B-VI.3) and differ only in the number of groups (34, 89 or 190). The other three libraries are identical to the first three except for a modification to the cross sections for {sup 238}U in the resonance range.
Research Organization:
Los Alamos National Lab., NM (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
674735
Report Number(s):
LA-UR--98-22; CONF-981003--; ON: DE98007152
Country of Publication:
United States
Language:
English

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