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Proceedings Paper

Laser-induced breakdown spectroscopy and spectral analysis of improvised explosive materials
Author(s): Amy J. R. Bauer; Michael P. Farrington; Kellen Sorauf; Andrzej W. Miziolek
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Paper Abstract

There exists an unmet need in the discovery and identification of certain improvised explosive (IE) materials. IE contain a wide range of materials, many of which are not well classified by available hand-held tools, especially metal powders and food products. Available measurement approaches are based in the identification of specific subgroups such as nitro/nitrate and chlorate/perchlorate, normally with Raman spectroscopy. The presence of metal powders is not detected by these approaches, and further the powders themselves scatter the laser radiation used in the excitation of the spectra, making other components more difficult to discern. Preliminary work with laserinduced breakdown spectroscopy (LIBS) shows that metal powders are easily detected and identified, and that fuel compounds in flash powder mixtures are easily classified with principal component analysis into those containing oxygen and chlorine or those containing oxygen and nitrogen. Alkali and alkali metal signals are readily used to determine the cation of any salt submitted to analysis.

Paper Details

Date Published: 21 May 2014
PDF: 8 pages
Proc. SPIE 9101, Next-Generation Spectroscopic Technologies VII, 91010M (21 May 2014); doi: 10.1117/12.2057930
Show Author Affiliations
Amy J. R. Bauer, Applied Research Associates, Inc. (United States)
Michael P. Farrington, Applied Research Associates, Inc. (United States)
Kellen Sorauf, Regis Univ. (United States)
Andrzej W. Miziolek, U.S. Army Research Lab. (United States)

Published in SPIE Proceedings Vol. 9101:
Next-Generation Spectroscopic Technologies VII
Mark A. Druy; Richard A. Crocombe, Editor(s)

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