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Proceedings Paper

Trace detection of nitrogen-based explosives with UV-PLF
Author(s): Jens-Uwe Guenther; Christian Bohling; Mario Mordmueller; Wolfgang Schade
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Paper Abstract

Trace detection of energetic materials is a method to screen personnel, packages and other items for concealed explosives. It is likely, that a person who carries explosives will contaminate himself and the package with the explosive. We present first results on the development of a compact detector combining Pulsed Laser Fragmentation (PLF) with fragments detection. A passively q-switched UV microchip laser photofragments surface contaminations. The concentration ratio of the fragments NO and NO2 is a sufficient indicator for the presence of nitrogen-based explosives. For TNT, the results suggest, that a surface density as small as a few ng/cm2 can be reliably detected.

Paper Details

Date Published: 13 October 2010
PDF: 8 pages
Proc. SPIE 7838, Optics and Photonics for Counterterrorism and Crime Fighting VI and Optical Materials in Defence Systems Technology VII, 783807 (13 October 2010); doi: 10.1117/12.865590
Show Author Affiliations
Jens-Uwe Guenther, SECOPTA GmbH (Germany)
Christian Bohling, SECOPTA GmbH (Germany)
Mario Mordmueller, Technische Univ. Clausthal (Germany)
Wolfgang Schade, Fraunhofer-Institut für Nachrichtentechnik Heinrich-Hertz-Institut (Germany)


Published in SPIE Proceedings Vol. 7838:
Optics and Photonics for Counterterrorism and Crime Fighting VI and Optical Materials in Defence Systems Technology VII
Colin Lewis; Roberto Zamboni; François Kajzar; Doug Burgess; Emily M. Heckman, Editor(s)

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