Method for Condensation of the Macroscopic Transport Cross-Sections for Criticality Analyses of FBR MONJU by the Code NSHEX
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概要
- 論文の詳細を見る
The problem with the energy-group approximation effect in the criticality analysis of the FBR MONJU by the discrete-ordinate transport code NSHEX has been studied. In order to reduce the existing energy-group collapsing effect in the 18 and 7-group results for the effective multiplication factor, a new algorithm for condensation of the macroscopic transport cross-sections has been proposed and verified. This work presents the definition of the new collapsing algorithm, results from the verification tests and a short discussion from the viewpoint of consistency of the algorithm with the specific finite-difference method of the code NSHEX. According to the presented results, the new collapsing algorithm can be recommended for condensation of the transport cross-sections from 70 into fewer energy-group structures.
- 社団法人 日本原子力学会の論文
- 2004-12-25
著者
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Todorova G
Core Development Group International Cooperation And Technology Development Center Tsuruga Head Offi
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TODOROVA Galina
Core Development Group, International Cooperation and Technology Development Center, Tsuruga Head Of
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NISHI Hiroshi
Core Development Group, International Cooperation and Technology Development Center, Tsuruga Head Of
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ISHIBASHI Junichi
Core Development Group, International Cooperation and Technology Development Center, Tsuruga Head Of
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Nishi H
Japan Nuclear Cycle Dev. Inst. Fukui
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Nishi Hiroshi
Core Development Group International Cooperation And Technology Development Center Tsuruga Head Offi
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Ishibashi Junichi
Core Development Group International Cooperation And Technology Development Center Tsuruga Head Offi
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