Resonance Treatment for Double Heterogeneity Based on Subgroup Method

被引：0

作者：

Li S. ^{[1
]}

Zhang Q. ^{[1
]}

Zhang Z. ^{[1
]}

Zhao Q. ^{[1
]}

Liang L. ^{[1
]}

Liang Y. ^{[1
]}

Zhang J. ^{[1
]}

Lou L. ^{[2
]}

Li M. ^{[2
]}

机构：

[1] Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, Harbin Engineering University, Harbin

[2] Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu

来源：

Yuanzineng Kexue Jishu/Atomic Energy Science and Technology | 2020年 / 54卷 / 10期

关键词：

Double heterogeneity; Resonance self-shielding; Sanchez-Pomraning method; Subgroup method;

D O I：

10.7538/yzk.2020.youxian.0136

中图分类号：

学科分类号：

摘要：

The improved subgroup method coupled with Sanchez-Pomraning method (ISSP) was proposed for the resonance self-shielding calculation of double heterogeneity (DH) problems. ISSP employed a fine-mesh energy structure to avoid the extra resonance interference treatment. The DH subgroup fixed source equations and the neutron slowing-down equations were established to obtain the effective resonance cross-section in particle and matrix. Finally, the transport calculation under DH condition was carried out. By contrast with the continuous-energy Monte Carlo method and the ultra-fine group method, numerical verification results indicate that ISSP could provide resonance cross-section in DH condition accurately and effectively. © 2020, Editorial Board of Atomic Energy Science and Technology. All right reserved.

引用

页码：1892 / 1899

页数：7

共 16 条

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