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金大志, 程亮. 中子检测爆炸物的原理实验研究[J]. 原子核物理评论, 2009, 26(1): 41-43. DOI: 10.11804/NuclPhysRev.26.01.041
引用本文: 金大志, 程亮. 中子检测爆炸物的原理实验研究[J]. 原子核物理评论, 2009, 26(1): 41-43. DOI: 10.11804/NuclPhysRev.26.01.041
JIN Da-zhi, . Principium Experiment Study in Detecting Explosive by Neutron[J]. Nuclear Physics Review, 2009, 26(1): 41-43. DOI: 10.11804/NuclPhysRev.26.01.041
Citation: JIN Da-zhi, . Principium Experiment Study in Detecting Explosive by Neutron[J]. Nuclear Physics Review, 2009, 26(1): 41-43. DOI: 10.11804/NuclPhysRev.26.01.041

中子检测爆炸物的原理实验研究

Principium Experiment Study in Detecting Explosive by Neutron

  • 摘要: 传统的X射线无损检测应用广泛, 但X射线对低原子序素构成为主的爆炸物不能进行有效的甄别; 中子穿透能力较强, 能和原子核相互作用产生特征γ射线, 因此中子无损检测方法能有效弥补X射线无损检测方法的不足。 介绍了几种常用的中子无损检测方法, 并采用脉冲快热中子法(为PFTNA)的方法对模拟爆炸物进行了测量。 实验结果表明, 利用密封中子发生器和采用PFTNA方法进行爆炸物检测是可行的。 Traditional Xray scatheless detecting method is used widely, but it is not useful to discriminate explosive consisting of low Z atomic elements. The penetrability of neutron is much better, and it can interact on atomic nucleus to emit characteristic γ ray. So neutron scatheless detecting methods can the used to detect the low Z atomic elements. In this paper, several neutron scatheless detecting methods are introduced briefly, and the principium experiment using Pulse Fast Thermal Neutron Analysis(PETNA) to detect a kind of explosive simulacrum is carried out. The experiment results show that PFTNA based on the sealed neutron generator is feasible to detect explosive.

     

    Abstract: Traditional Xray scatheless detecting method is used widely, but it is not useful to discriminate explosive consisting of low Z atomic elements. The penetrability of neutron is much better, and it can interact on atomic nucleus to emit characteristic γ ray. So neutron scatheless detecting methods can the used to detect the low Z atomic elements. In this paper, several neutron scatheless detecting methods are introduced briefly, and the principium experiment using Pulse Fast Thermal Neutron Analysis(PETNA) to detect a kind of explosive simulacrum is carried out. The experiment results show that PFTNA based on the sealed neutron generator is feasible to detect explosive.

     

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