Accession Number DE2012-1045849
Title ORNL Resonance Evaluation for ENDF/B-VII.1.
Publication Date 2012
Media Count 2p
Personal Author D. Wiarda G. Arbanas K. H. Guber L. C. Leal M. E. Dunn
Abstract Cross-section evaluations in the resonance region are performed at Oak Ridge National Laboratory (ORNL) with the computer code SAMMY based on formalisms derived from the R-matrix theory. Resonance parameters (RPs) obtained in the evaluation, combined with resonance formalism, replicate a regression of the experimental data. The RPs are also used to generate cross-section data for neutron transport calculations in analyses of nuclear reactor design and nuclear criticality safety. In addition to generating RPs, the evaluation also generates the resonance parameter covariance (RPC) data. Several ORNL resonance evaluations, including RPs and RPCs, were incorporated in the recently released US-evaluated nuclear data library, ENDF/B-VII.1. A brief summary of the RPs and RPCs evaluated at ORNL is given.
Keywords Computer codes
Criticality
Cross sections
Design
Evaluation
Formalisms
Neutron transport
Oak Ridge National Laboratory
R matrix
Reactors
Resonance
Safety

 
Source Agency Technical Information Center Oak Ridge Tennessee
NTIS Subject Category 77 - Nuclear Science & Technology
Corporate Author Oak Ridge National Lab., TN.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1226
Contract Number DE-AC05-00OR22725

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