[2B13-17] 解析手法開発2

[2B16] Sub-group method applied to Iso Geometric Analysis calculation code

*Matthias Hermann Nezondet¹, Willem F.G. van Rooijen¹ (1. Univ. of Fukui)

キーワード：Self Shielding Calculation, Sub-group Method, Cross Section, Probability Table, IGA method

We are developing a simulation code based on IsoGeometric Analysis (IGA) to resolve neutron transport equation for any geometrical domains with the multi-group ”Sn” formalism. Indeed it is necessary to treat the cross section resonances with self-shielding calculation. We have decided to use the sub-group method because it's a self-shielding method that can be used with ”Sn” formalism and for any arbitrary shapes. Sub-group calculation use probabilty table instead of using cross section directly. However the method to get the probability table and the self-shielding calculation are linked that's why we need to perform some calculations and compare them to referance results.