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DOE OSTI · 1812649

Multigroup Scattering in Monte Carlo Radiation Transport Codes [Slides]

Singh, Luquant·Nelluvelil, Eappen Sebastian·Burke, Timothy Patrick·Trahan, Travis John
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Abstract

Legendre truncations to multigroup scattering distributions are not amenable to Monte Carlo sampling due to negative values. We have implemented two moment-preserving methods in MGMC that capture the shape of the truncation, are non-negative over [-1, 1], and can be efficiently sampled on CPUs and GPUs. MGMC can now simulate neutrons with anisotropic scattering mechanics and MGMC shows good agreement with LANL production codes PARTISN.

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS97 MATHEMATICS AND COMPUTINGMonte Carlo, multigroup scattering, GPU, radiation transport

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Singh, Luquant, Nelluvelil, Eappen Sebastian, Burke, Timothy Patrick, Trahan, Travis John. 2021-08-10. Multigroup Scattering in Monte Carlo Radiation Transport Codes [Slides]. https://doi.org/10.2172/1812649

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