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Impact of truncated coated fuel particles on neutronic characteristic of statistical geometry model in MVP code

Ho, H. Q.   ; 本多 友貴; 藤本 望*; 後藤 実  ; 石塚 悦男   

Ho, H. Q.; Honda, Yuki; Fujimoto, Nozomu*; Goto, Minoru; Ishitsuka, Etsuo

This study investigated the impact of truncated coated fuel particles (CFPs) on neutronic characteristic of the fuel in a statistical geometry (STG) model. Calculation results showed that the effect of truncated CFPs makes the multiplication factor decrease by about 0.1 to 1.0 %$$Delta$$k/k depended on packing fraction, uranium enrichment, and particle size.

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