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CAD/MCNP自動変換コード:GEOMITの開発,3; GEOMITを用いたITERベンチマーク問題の解析

Development of the CAD/MCNP automatic conversion code: GEOMIT, 3; Analysis of ITER CAD/MCNP benchmark problem with GEOMIT

飯田 浩正; 佐藤 聡; 今野 力  ; 西谷 健夫; Nasif, H.*; 益田 福三*; 山田 政男*; 諸田 秀嗣*

Iida, Hiromasa; Sato, Satoshi; Konno, Chikara; Nishitani, Takeo; Nasif, H.*; Masuda, Fukuzo*; Yamada, Masao*; Morota, Hidetsugu*

JAEA-FNSがCSDと共同で開発中のCAD/MCNP自動変換コードGEOMITを用いて、ITERのタスクで設定されたベンチマーク問題を解析した。解析項目は(1)第一壁中性子負荷分布,(2)ダイバータ部中性子束,(3)インボードTFコイル発熱,(4)中央水平ポートプラグ背後の中性子束分布である。他極の結果とほぼ同等の結果が得られ、GEOMITの開発が順調に進んでいることを確認した。

The ITER benchmark problem has been analysed with a CAD/MCNP automatic conversion cord "GEOMIT" which is beeing developed by JAEA-FNS in cooperation with CSD. The analysis includes (1) First wall neutron load, (2) Neutron fluxes in divertor cassette (3) Inboard TF coil nuclear heat and (4) Neutron flux distribution behind the port plug rear in a equitorial port. Generally very similar results have been obtained by GEOMIT with those of other ITER participating parties, suggesting that development of GEOMIT is progressing smoothly.

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