Resonance Treatment Based on Ultra-fine-group Spectrum Calculation in the AEGIS Code
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概要
- 論文の詳細を見る
The resonance calculation method using the ultra-fine-group spectrum calculations in the AEGIS code is explained in detail. By a simple benchmark problem, it is verified that the effect of anisotropic scattering on effective cross-sections is not very large and the isotropic scattering source approximation is adequate in practical resonance calculations in LWRs. Furthermore, some efficient numerical algorithms in the ultra-fine-group calculations to reduce the computation time without large degeneration of accuracy are presented. In addition, the SPH method for energy collapsing of cross-sections is adopted in the AEGIS code to reduce the error of energy collapsing.Through the comparison with continuous-energy Monte-Calro calculation in the pin-cell geometry, the validity of the resonance treatment in the AEGIS code is verified.
- 社団法人 日本原子力学会の論文
- 2007-07-25
著者
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YAMAMOTO Akio
Nagoya University
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SUGIMURA Naoki
Nuclear Engineering, Ltd.
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Sugimura Naoki
Nuclear Engineering Limited
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Yamamoto Akio
Nagoya Institute Of Technology
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