核查技术数值实验平台中的时间关联符合测量与中子多重性测量
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摘要
为解决部件核查技术研究中实验数据较少、缺乏系统性的问题,建立了用于核部件属性认证的数值实验平台.该数值实验平台整合了用于模拟被动中子、被动γ射线、主动中子、主动高能光子、缓发中子探测方法的部件核查技术软件.平台新增了适用于时间关联符合测量和中子多重性测量的计算功能,该功能分别由DTB程序和NMC程序实现.本文主要介绍数值实验平台新功能的开发和应用,分别介绍这两种方法的物理原理与程序流程.对程序的验证由分别设计的两个数值实验完成.平台可以为利用统计方法研究核部件核查技术提供系统性的数据.
We set up a numerical experiment platform. It consolidates codes used to simulate warhead verification technologies of passive neutron,passive γ ray,active neutron,active high-energy photon and delayed neutron methods. Two functions on simulating time-dependent coincidence and neutron multiplicity counter measurements were added to the platform. They are carried out by DTB code and NMC code. This paper introduces development and validation of the programs,including theory and program flow. Two numerical experiments are designed to validate the program. The platform provides systematic data to support statistical analysis on nuclear warhead verification technologies
We set up a numerical experiment platform. It consolidates codes used to simulate warhead verification technologies of passive neutron,passive γ ray,active neutron,active high-energy photon and delayed neutron methods. Two functions on simulating time-dependent coincidence and neutron multiplicity counter measurements were added to the platform. They are carried out by DTB code and NMC code. This paper introduces development and validation of the programs,including theory and program flow. Two numerical experiments are designed to validate the program. The platform provides systematic data to support statistical analysis on nuclear warhead verification technologies
引文
[1]Xie Wenxiong,Li Jiansheng,Gong Jian,et al.Experimental study on the measurement of uranium casting enrichment by timedependent coincidence method[A].Chinese Phys C,2013,37:106202.
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[14]Huang Hanxiong,Ruan Xichao,Chen Guochang,et al.Measurement of the response function and the detection effciency of an organic liquid scintillator for neutrons between 1 and 30 Me V[J].Chinese Physics C,2009,33(8):677-681.
[15]谢文雄.时间关联符合法测量铀部件浓缩度[D].绵阳:中国工程物理研究院,2011.
[2]X-5 Monte Carlo Team.MCNP-A general Monte Carlo N-particle transport code,Version 5,Volume I[R].Los Alamos:Los Alamos National Laboratory,2003.
[3]Brown F,Kiedrowski B,Bull J.MCNP-1.60 release notes,LA-UR-10-06235[R].US:Los Alamos National Laboratory,2010.
[4]X-5 Monte Carlo Team.MCNP-A general Monte Carlo N-particle transport code,version 5,Volume II[R].Los Alamos National Laboratory,2003.
[5]张松柏,伍钧,朱剑钰,解东,田东风.主动法中子时间关联符合测量探测金属铀质量和丰度[J].原子能科学技术,2011,45:389-393.
[6]黄坡,李建胜,叶岑明,谢奇林.时间关联符合法铀部件质量测量中的几何影响[J].原子能科学技术,2012,46:53-56.
[7]Langner D G,Stewart J E,et al.Application guide to neutron multiplicity counting[R].LA-13422-M,Los Alamos National Laboratory,1998.
[8]刘晓波,胡倩,肖建国.铀材料的中子多重性测量分析方法[J].核动力工程,2009,30:74-76.
[9]刘振汉,陈琦,熊忠华,帅茂兵,赵德山,张宏俊.基于嵌入蒙特卡罗模拟计算的遗传算法对多重测量装置3He管排布的优化[J].原子能科学技术,2011,45:1388-1392.
[10]伍钧,张本爱,胡思得.符合测量中子方法核查核弹头技术分析[J].原子能科学技术,2004,38:200-203.
[11]许小明,贾向君.中子多重性测量技术研究进展[R]∥中国原子能科学研究院:中国原子能科学研究院2001年报,2001:329-330.
[12]王中杰,张全虎,刘杰,管才路.基于MCNP模拟的中子多重性计数器3-He管的设计[J].核电子学与探测技术,2010,30:1626-1628.
[13]贾莹,张谷令,付军丽,邹斌.核裂变中子发射多重性的蒙特卡罗模拟[J].中央民族大学学报(自然科学版),2010,19:41-45.
[14]Huang Hanxiong,Ruan Xichao,Chen Guochang,et al.Measurement of the response function and the detection effciency of an organic liquid scintillator for neutrons between 1 and 30 Me V[J].Chinese Physics C,2009,33(8):677-681.
[15]谢文雄.时间关联符合法测量铀部件浓缩度[D].绵阳:中国工程物理研究院,2011.