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DOE OSTI · 1908973

Nuclear Reaction Data Evaluations for Nuclear Applications Physics and modeling [Slides]

Pigni, Marco T.
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Abstract

This presentation provides an evaluation workflow scheme for the project. It also discusses nuclear data libraries, including an overview of worldwide nuclear data libraries and current funding agencies. The presentation also discusses the theoretical framework commonly used in the evaluated work, including the R-matrix theory (≈ up to a few keVs for heavy nuclei) as well as pre-equilibrium (PE) and Hauser-Feshbach (HF) theory (⪆1 MeV for medium/heavy nuclei). Inclusion of experimental effects are also discussed. Examples of evaluated work, including theory, experiments, and applications are discussed, specifically n+ 28,29,30 Si evaluation (direct capture component), n+ 53 Cr evaluation (strong multiple scattering effects), n+ 239 Pu(n,γf) reaction (fluctuations in neutron multiplicities), and α+ 17,18 O evaluations (emerging neutron spectra).

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73 NUCLEAR PHYSICS AND RADIATION PHYSICSDirect Capture ComponentHauser-Feshbach (HF)Multiple ScatteringNeutron SpectraNuclear Criticality Safety Program (NCSP)Nuclear DataPre-Equilibrium (PE)R-Matrix Theory

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Pigni, Marco T.. 2020-05-07. Nuclear Reaction Data Evaluations for Nuclear Applications Physics and modeling [Slides]. https://doi.org/10.2172/1908973

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