Resonance Region Covariance Analysis Method and New Covariance Data for {sup 232}Th, {sup 233}U, {sup 235}U, {sup 238}U, and {sup 239}Pu
- Oak Ridge National Laboratory, P.O. BOX 2008, Oak Ridge, TN 37831 (United States)
Resonance-parameter covariance matrix (RPCM) evaluations in the resolved resonance region were done for {sup 232}Th, {sup 233}U, {sup 235}U, {sup 238}U, and {sup 239}Pu using the computer code SAMMY. The retroactive approach of the code SAMMY was used to generate the RPCMs for {sup 233}U and {sup 235}U. RPCMs for {sup 232}Th, {sup 238}U and {sup 239}Pu were generated together with the resonance parameter evaluations. The RPCMs were then converted in the ENDF format using the File32 representation. Alternatively, for computer storage reasons, the File32 was converted in the File33 cross section covariance matrix (CSCM). Both representations were processed using the computer code PUFF-IV. This paper describes the procedures used to generate the RPCM with SAMMY.
- OSTI ID:
- 21163783
- Journal Information:
- Nuclear Data Sheets, Journal Name: Nuclear Data Sheets Journal Issue: 12 Vol. 109; ISSN NDTSBA; ISSN 0090-3752
- Country of Publication:
- United States
- Language:
- English
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