基于ISPRA-Fe实验的SuperMC 3.2屏蔽深穿透验证

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	基于ISPRA-Fe实验的SuperMC 3.2屏蔽深穿透验证
其他题名	Validation of Super MC 3.2 for Deep Penetration Problems with ISPRA-Fe Experiment
	2019
发表期刊	核科学与工程
ISSN	0258-0918
摘要	为验证中子输运设计与安全评价软件系统SuperMC(超级蒙卡)在计算裂变堆屏蔽深穿透问题时的准确性和可靠性,采用OECD/NEA和RSICC联合发布的国际屏蔽积分实验数据库(SINBAD)中的ISPRA-Fe基准例题进行了测试验证。通过对屏蔽分析中关注的中子通量密度和反应率的计算,SuperMC所有物理量的计算结果与MCNP参考值的相对偏差均小于3σ,且与实验结果整体上吻合较好。同时,针对厚屏蔽区域的32S(n,p)32P反应率计算难以收敛的问题,采用了全局权窗生成器GWWG生成权窗进行计算,FOM因子提高了4431倍,证明了SuperMC处理深穿透问题的正确性和高效性。
其他摘要	Deep penetration problem in fission reactors proposes big challenge for neutron transport simulation.To validate the accuracy and reliability of SuperMC in solving such problem,ISPRA-Fe experiment from the shielding integral benchmark archive and database(SINBAD)released by OECD/NEA and Radiation Safety Information Computational Center(RSICC)was calculated.The neutron flux and reaction rates,which are of interest in shielding analysis,were calculated and analyzed in this paper.The results showed a good agreement between SuperMC and the experimental values,and that the relative deviations between the results of SuperMC and MCNP are in the±3σinterval.In addition,aimed at the slow convergence problem in reaction rate calculation of 32 S(n,p)32 P,the global weight window generator(GWWG)was used in SuperMC.FOM can be accelerated by a factor of 4 431.The correctness and effectiveness of the shielding design and analysis of SuperMC in deep penetration problem is proved.
关键词	SuperMC 深穿透屏蔽计算 SINBAD
收录类别	CSCD
语种	中文
CSCD记录号	CSCD:6596850
引用统计
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/48954
专题	中国科学院合肥物质科学研究院
推荐引用方式 GB/T 7714	. 基于ISPRA-Fe实验的SuperMC 3.2屏蔽深穿透验证[J]. 核科学与工程,2019,039.
APA	(2019).基于ISPRA-Fe实验的SuperMC 3.2屏蔽深穿透验证.核科学与工程,039.
MLA	"基于ISPRA-Fe实验的SuperMC 3.2屏蔽深穿透验证".核科学与工程 039(2019).