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太赫兹时域光谱技术在危险品检测方面的应用
引用本文:刘桂锋,赵红卫,葛敏,王文锋.太赫兹时域光谱技术在危险品检测方面的应用[J].光谱学与光谱分析,2008,28(5):966-969.
作者姓名:刘桂锋  赵红卫  葛敏  王文锋
作者单位:1. 中国科学院上海应用物理所,上海,201800;中国科学院研究生院,北京,100039
2. 中国科学院上海应用物理所,上海,201800
基金项目:上海市基础重大项目 , 国家自然科学基金
摘    要:太赫兹波(terahertz,THz,T-ray)是指频率介于0.1~10 THz之间的电磁辐射,在电磁波谱上位于微波和远红外线之间。大多数爆炸物、毒品在此波段有特征吸收。与在公共安全领域检测武器、爆炸物、毒品等危险品的传统方法相比,太赫兹辐射能量低,不会产生电离辐射,也不会引起安全担忧。而且,太赫兹波对于衣物等大多数包装材料有很强的穿透力,对物质的检测可以做到高灵敏、无损伤和远距离,因此在反恐、毒品、安全检测等方面具有显著潜在优势。文章介绍了国内外太赫兹时域光谱技术(terahertz timedomain spectroscopy,THz-TDS)在爆炸物及毒品检测方面的研究最新进展;详细讨论了黑索金(RDX)的研究现状,并初步探讨了影响实验结果的几种因素。

关 键 词:太赫兹时域光谱  爆炸物  毒品  检测
文章编号:1000-0593(2008)05-0966-04
修稿时间:2006年12月5日

Application of Terahertz Time Domain Spectroscopy to Explosive and Illegal Drug
LIU Gui-feng,ZHAO Hong-wei,GE Min,WANG Wen-feng.Application of Terahertz Time Domain Spectroscopy to Explosive and Illegal Drug[J].Spectroscopy and Spectral Analysis,2008,28(5):966-969.
Authors:LIU Gui-feng  ZHAO Hong-wei  GE Min  WANG Wen-feng
Institution:Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China. liuguifeng29@163.com
Abstract:Terahertz waves(THz,T-ray) lie between far-infrared and microwave in electromagnetic spectrum with frequency from 0.1 to 10 THz.Many explosives and illicit drugs show characteristic spectral features in the terahertz.Compared with conventional methods of detecting a variety of threats,such as weapons,explosives and illegal drugs,THz radiation is low frequency and non-ionizing,and does not give rise to safety concerns.Moreover,THz can penetrate many barrier materials,such as clothing and common packaging materials.THz technique has a great potential and advantage in antiterrorism and security inspection of explosives and illegal drugs due to the ability of high-sensitivity,nondestructive and stand-off inspection of many substances.The present paper summarizes the latest progress in the application of terahertz time domain spectroscopy(THz-TDS) to explosives and illegal drugs.Studies on RDX are discussed in details and many factors affecting experiments are also introduced.
Keywords:THz-TDS  Explosive  Illegal drug  Detection and identification
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