ENDF/B-VIII.0 CROSS SECTION TESTING FOR COPPER NUCLEAR CRITICALITY SAFETY APPLICATIONS

نویسندگان

چکیده

In the update from ENDF/B-VII.1 to ENDF/B-VIII.0, copper cross sections were significantly altered in intermediate and fast spectrum of ENDF-VIII.0 library. Performance this ENDF data requires validation determine whether recent evaluation has proven beneficial. To examine performance new library, particularly data, critical benchmarks ICSBEP handbook chosen for their sensitivity section changes modeled using SCALE continuous energy Monte Carlo simulations. Selected ENDF-VII.1 compute k eff within a statistical uncertainty 10 pcm compared reference benchmark experimental criticality. Due choices selection based on set consist intermediately enriched uranium, highly or plutonium systems. 11 separate evaluations containing 32 individual configurations sensitive selected, modelled, This work demonstrates significant decrease deviation between calculated criticality as result library; absolute mean 522.5±39.3 249.6±39.3, root square 630.8±46.1 338.1±74.9. Additionally, role recently evaluated improved agreement is presented, confirming benefit reaffirming data.

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ژورنال

عنوان ژورنال: Epj Web of Conferences

سال: 2021

ISSN: ['2101-6275', '2100-014X']

DOI: https://doi.org/10.1051/epjconf/202124710007