JENDL-4.0に基づく高速炉用炉定数UFLIB.J40及びJFS-3-J4.0の作成

Preparation of fast reactor group constant sets UFLIB.J40 and JFS-3-J4.0 based on the JENDL-4.0 data

杉野 和輝; 神 智之*; 羽様 平 ; 沼田 一幸*

Sugino, Kazuteru; Jin, Tomoyuki*; Hazama, Taira; Numata, Kazuyuki*

国内最新の評価済み核データライブラリJENDL-4.0に基づく高速炉用炉定数セットUFLIB.J40及びJFS-3-J4.0を作成した。UFLIB.J40については詳細群炉定数として70群, 73群, 175群, 900群構造のものを作成するとともに超微細群炉定数も用意した。また、JENDL-4.0における核分裂収率データ付与核種の拡張に合わせて、ランプ化FP断面積の核種数を拡張した。

Fast reactor group constant sets UFLIB.J40 and JFS-3-J4.0 were prepared, which are based on the latest Japanese evaluated nuclear data library JENDL-4.0. Concerning UFLIB.J40, several fine group constant sets, which covered 70-group, 73-group, 175-group and 900-group structures, and the ultra fine group constant set were prepared. The number of nuclides for cross-sections of lumped fission products was extended so as to follow the extension of the number of fissile species for fission yield data.