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Proceedings Paper

Time domain terahertz detection of concealed threats in luggage and personnel
Author(s): David Zimdars; Jeffrey White; G. Stuk; A. Chernovsky; G. Fichter; S. L. Williamson
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Paper Abstract

We demonstrate a large area time domain terahertz (THz) imaging system capable of scanning 1 meter square area in less than 20-100 minutes for several security applications. The detection of concealed explosives; metallic and non-metallic weapons (such as ceramic, plastic or composite guns and knives); and flammables in luggage, packages and personnel has been demonstrated. Transmission mode images of luggage containing threat items are discussed. Reflection mode images of luggage and personnel are discussed. Time domain THz images can be analyzed for 3 dimensional and volumetric information. Time domain THz images have advantages over coherent narrow band imaging methods, with freedom from standing wave artifacts and with greater ability to discard irrelevant or intervening reflections through time discrimination.

Paper Details

Date Published: 19 May 2006
PDF: 5 pages
Proc. SPIE 6212, Terahertz for Military and Security Applications IV, 62120O (19 May 2006); doi: 10.1117/12.665748
Show Author Affiliations
David Zimdars, Picometrix, Inc. (United States)
Jeffrey White, Picometrix, Inc. (United States)
G. Stuk, Picometrix, Inc. (United States)
A. Chernovsky, Picometrix, Inc. (United States)
G. Fichter, Picometrix, Inc. (United States)
S. L. Williamson, Picometrix, Inc. (United States)

Published in SPIE Proceedings Vol. 6212:
Terahertz for Military and Security Applications IV
Dwight L. Woolard; R. Jennifer Hwu; Mark J. Rosker; James O. Jensen, Editor(s)

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