The Optimal Source Bias Method based on RMC code

doi:10.1016/j.anucene.2018.08.026

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	The Optimal Source Bias Method based on RMC code
	Pan, QQ ; Rao, JJ ; Wang, K ; Zhou, YY
刊名	ANNALS OF NUCLEAR ENERGY
	2018
卷号	121 期号:-页码:525-530
ISSN号	0306-4549
DOI	10.1016/j.anucene.2018.08.026
文献子类	期刊论文
英文摘要	When criticality calculation is performed with Reactor Monte Carlo (RMC) code for reactor analysis, the fission source iterative method is selected. There are two strategies to sample the fission neutrons in each fissile region: the conventional Proportional Stratified Sampling Method that focuses on the real physical process, and the author-developed Optimal Stratified Sampling Method that focuses on the optimal mathematics treatment. The Optimal Stratified Sampling Method have the effect of global variance reduction and could be easily implemented with the use of optimal source bias coefficients. However, the calculation of optimal source bias coefficients needs the values of variances in advance, which is almost impossible. To meet the requirement, a Batch Approximate Method is then put forward. The Batch Approximate Method based on the Batch algorithm and Shannon Entropy Diagnosis, eliminates the correlation among cycles during the criticality calculation. Combining the Optimal Stratified Sampling Method and the Batch Approximate Method, the Optimal Source Bias Method is established and developed in RMC code. The Optimal Source Bias Method was tested with a standard Pressurized Water Reactor assembly. The effect of global variance reduction was found, as well as the flattening of variance distribution. So, the new method is valuable for the high fidelity computation of the RMC code. (C) 2018 Elsevier Ltd. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31142]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China 2.Univ Chinese Acad Sci, Shanghai Inst Appl Phys, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Pan, QQ,Rao, JJ,Wang, K,et al. The Optimal Source Bias Method based on RMC code[J]. ANNALS OF NUCLEAR ENERGY,2018,121(-):525-530.
APA	Pan, QQ,Rao, JJ,Wang, K,&Zhou, YY.(2018).The Optimal Source Bias Method based on RMC code.ANNALS OF NUCLEAR ENERGY,121(-),525-530.
MLA	Pan, QQ,et al."The Optimal Source Bias Method based on RMC code".ANNALS OF NUCLEAR ENERGY 121.-(2018):525-530.