Developments in people screening using terahertz technology

被引：13

作者：

Baker, C ^{[1
]}

Tribe, WR ^{[1
]}

Cole, BE ^{[1
]}

Kemp, MC ^{[1
]}

机构：

[1] TeraView Ltd, Cambridge CB4 0WS, England

来源：

OPTICS AND PHOTONICS FOR COUNTERTERRORISM AND CRIME FIGHTING | 2004年 / 5616卷

关键词：

Terahertz; security screening; THz stand-off detection; THz wand; explosives detection;

D O I：

10.1117/12.573603

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe the latest progress on two new terahertz (THz) prototype systems for security screening applications. Firstly, we show a terahertz stand-off detection system, working at a distance of 0.5 m, and with a dynamic range of similar to60 dB. This allows the measurement of spectral features from 0.1 to 2.5 THz. Using this prototype, we present the reflection spectrum of an explosive material collected at 0.5 m stand-off and compare it with the predicted spectrum. Secondly, a hand held wand using multiple terahertz detectors has been assembled. This resembles a metal detector wand in operation, and is designed for detecting explosives as well as both metallic and non-metallic weapons hidden under clothing or possibly in bags. The first data from this system is presented, showing that objects can be distinguished using their spectral features.

引用

页码：61 / 68

页数：8

共 18 条

[1] PICOSECOND OPTOELECTRONIC SWITCHING AND GATING IN SILICON [J].