| Bamboo-Lattice程序多群截面数据库的改进 |
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| 引用本文： | 王冬勇,吴宏春,李云召,贺清明.Bamboo-Lattice程序多群截面数据库的改进[J].原子能科学技术,2018,52(8):1367-1373. |
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| 作者姓名： | 王冬勇 吴宏春 李云召 贺清明 |
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| 作者单位： | 西安交通大学 核科学与技术学院，陕西 西安710049 |
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| 摘 要： | 本文基于ENDF/B-Ⅶ.0核评价数据库，利用核数据加工处理程序NJOY及LATTICE_PRE为Bamboo-Lattice程序研制了一套改进后的多群截面数据库NECL2.0。基于基准题和数值分析的结果表明：采用NECL2.0数据库计算得到的燃料组件的kinf、裂变率分布、少群均匀化截面与参考解均吻合很好；考虑银铟镉共振对kinf的计算精度可提高近1000 pcm，与参考解相比最大裂变率相对偏差从-0.97%降低到-0.53%；考虑包壳锆的共振对kinf的计算精度可提高约60 pcm。
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| 关 键 词： | Bamboo-Lattice ENDF/B-Ⅶ.0 多群截面数据库 银铟镉共振 包壳锆共振 |
Improvement of Multi-group Cross Section Data Library of Bamboo-Lattice Code |
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| WANG Dongyong,WU Hongchun,LI Yunzhao,HE Qingming.Improvement of Multi-group Cross Section Data Library of Bamboo-Lattice Code[J].Atomic Energy Science and Technology,2018,52(8):1367-1373. |
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| Authors: | WANG Dongyong WU Hongchun LI Yunzhao HE Qingming |
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| Affiliation: | School of Nuclear Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China |
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| Abstract: | Based on the ENDF/B-Ⅶ.0 nuclear evaluation data library, an improved multi-group cross section data library NECL2.0 was produced for Bamboo-Lattice code by using the nuclear data processing code NJOY and LATTICE_PRE. The results based on benchmark and numerical analysis show that the calculation results of infinite multiplication factor kinf, fission rate distribution and few group homogenized cross section by using NECL2.0 library agree well with the corresponding reference values. Considering the resonance of Ag In-Cd can increase accuracy of kinf by 1 000 pcm. Compared with reference values, the maximum relative deviation of fission rate reduces from -0.97% to -0.53%. Considering the resonance of zirconium in cladding can improve the accuracy of kinf by about 60 pcm. |
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| Keywords: | Bamboo-Lattice ENDF/B-Ⅶ 0 multi-group cross section data library resonance of Ag-In-Cd resonance of zirconium in cladding |
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