Share Email Print
cover

Proceedings Paper

Threat detection of liquid explosive precursor mixtures by Spatially Offset Raman Spectroscopy (SORS)
Author(s): Michael D. Hargreaves; Pavel Matousek
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

We present the detection of liquid explosive precursor mixtures through diffusely scattering and fluorescing bottles and packaging. Spatially Offset Raman Spectroscopy (SORS) is a recently developed Raman spectroscopic method capable of non-invasively interrogating diffusely scattering containers. When compared with conventional Raman, a substantially enhanced sensitivity is achieved by the technique's inherent ability to effectively suppress fluorescence and Raman contributions originating from the wall of the container. The measurements presented here focus on challenging mixtures of hydrogen peroxide solution, a critical component of a number of liquid explosives, with highly absorbing or fluorescing beverages and creams, in which liquid explosive precursors could potentially be concealed. The method enabled the detection of concealed hydrogen peroxide solution in all the studied cases.

Paper Details

Date Published: 25 September 2009
PDF: 7 pages
Proc. SPIE 7486, Optics and Photonics for Counterterrorism and Crime Fighting V, 74860B (25 September 2009); doi: 10.1117/12.840195
Show Author Affiliations
Michael D. Hargreaves, Cobalt Light Systems Ltd. (United Kingdom)
Pavel Matousek, Cobalt Light Systems Ltd. (United Kingdom)
Science and Technology Facilities Council (United Kingdom)


Published in SPIE Proceedings Vol. 7486:
Optics and Photonics for Counterterrorism and Crime Fighting V
Colin Lewis, Editor(s)

© SPIE. Terms of Use
Back to Top