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 γ 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.
出处
《原子核物理评论》
CAS
CSCD
北大核心
2009年第1期41-43,共3页
Nuclear Physics Review
关键词
中子发生器
脉冲快热中子法
Γ射线
爆炸物
neutron qenerator
pulse fast thermal neutron analysis
γ ray
explosive
