原子能科学技术Issue(9)：1627-1633,7.DOI:10.7538/yzk.2014.48.09.1627
核截面不确定性引起的 keff不确定度的直接蒙特卡罗方法计算
Uncertainty Calculation of keff Caused by Uncertainty of Nuclear Cross-section Using Direct Monte Carlo Method
王新哲 1喻宏 1王文明 2胡赟 1杨晓燕1
作者信息
- 1. 中国原子能科学研究院 快堆研究设计所，北京 102413
- 2. 中国原子能科学研究院 核物理研究所，北京 102413
- 折叠
摘要
Abstract
The uncertainty of nuclear cross-section is the major factor causing the uncer-tainty of kef .The direct Monte Carlo method was used to calculate the uncertainty of kef caused by uncertainty of nuclear cross-section data .The method simulated the distribu-tion of nuclear data firstly ,then used the data for integral parameters calculation with core calculation program and used statistical method to get uncertainty of kef . Two different kinds of nuclear devices ,Jezebel-239 Pu and China Experimental Fast Reactor , were calculated using this method and the results show that the direct Monte Carlo method for uncertainty analysis is reasonable and achievable .关键词
蒙特卡罗方法/核截面/不确定度计算/协方差数据Key words
Monte Carlo method/nuclear cross-section/uncertainty calculation/covari-ance data分类
能源科技引用本文复制引用
王新哲,喻宏,王文明,胡赟,杨晓燕..核截面不确定性引起的 keff不确定度的直接蒙特卡罗方法计算[J].原子能科学技术,2014,(9):1627-1633,7.
