现代应用物理2024，Vol.15Issue(2)：61-69,9.DOI:10.12061/j.issn.2095-6223.2024.020206
基于OpenMC制作轻水堆中子少群截面用于OpenMOC计算
Production of Few Group Cross Sections of Neutron in Light Water Reactor in OpenMOC Calculation Based on OpenMC
周峰 1杨永伟 2吴翔 2房鹏 2王慧巧 3杨磊2
作者信息
- 1. 先进能源科学与技术广东省实验室,广东惠州 516000
- 2. 先进能源科学与技术广东省实验室,广东惠州 516000||中国科学院近代物理研究所,兰州 730000||中国科学院大学核科学技术学院,北京 100049
- 3. 先进能源科学与技术广东省实验室,广东惠州 516000||中国科学院近代物理研究所,兰州 730000
- 折叠
摘要
Abstract
To provide a high-precision few group cross sections library for the method of characteristics code OpenMOC,the output count file of Monte Carlo code OpenMC is studied.By developing the counting conversion section code CSC,this code can process the neutron fluence counts and the reaction counts of various reaction types in the OpenMC counting file to obtain the few group cross sections of neutron for OpenMOC.By using this cross sections generation method,the few group cross sections library with different transport correction methods and energy groups with different levels of precision are generated and provided for OpenMOC calculation.Through analyzing the results of fuel assemblies and benchmark questions for light water reactors,a method with high precision in section library generation is obtained.A neutron few group cross sections library is generated by using in-scatter approximation and CASMO-40 group.The results of the C5G7 benchmark questions are compared with the OpenMC calculation results as the reference solution.The results shows that the deviation of keff is 322.5 × 10-5.The relative deviation of fuel rod power is all less than 2％,and the relative deviation of assemblies power is all less than 1％.The neutron few group cross sections of light water reactor generated in this way has good accuracy.关键词
OpenMC/OpenMOC/中子少群截面/计数转截面代码CSC/输运修正/能群结构/C5G7基准题Key words
OpenMC/OpenMOC/few group cross sections of neutron/counting conversion cross section code CSC/transport correction/energy group structure/C5G7 benchmark question分类
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周峰,杨永伟,吴翔,房鹏,王慧巧,杨磊..基于OpenMC制作轻水堆中子少群截面用于OpenMOC计算[J].现代应用物理,2024,15(2):61-69,9.
