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Proceedings Paper

Developments in people screening using terahertz technology
Author(s): Colin Baker; William R. Tribe; Bryan E. Cole; Michael C. Kemp
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Paper Abstract

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 ~60 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 0.5m 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.

Paper Details

Date Published: 16 December 2004
PDF: 8 pages
Proc. SPIE 5616, Optics and Photonics for Counterterrorism and Crime Fighting, (16 December 2004); doi: 10.1117/12.573603
Show Author Affiliations
Colin Baker, TeraView Ltd. (United Kingdom)
William R. Tribe, TeraView Ltd. (United Kingdom)
Bryan E. Cole, TeraView Ltd. (United Kingdom)
Michael C. Kemp, TeraView Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 5616:
Optics and Photonics for Counterterrorism and Crime Fighting
Tim P. Donaldson; Colin Lewis, Editor(s)

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