Multi-group formulation of the temperature-dependent resonance scattering model and its impact on reactor core parameters

Shadi Z Ghrayeb,Abderrafi M Ougouag,Mohamed Ouisloumen,Kostadin N Ivanov

Annals of Nuclear Energy（2014）

引用 6|浏览7

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摘要

•Multi-group formulation for exact neutron elastic scattering kernel is developed.•Up-scattering effects are incorporated in the cross-section data for heavy nuclei.•Effects on Doppler Temperature Coefficient (DTC) are demonstrated using DRAGON.•Results show an increase in DTC values by almost 10% for UOX and MOX LWR fuels.

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关键词

Resonance scattering,Multi-group formulation,Doppler effect,Up-scattering,Elastic scattering

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