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Classification of explosive residues on organic substrates using laser induced breakdown spectroscopy |
Applied Optics, Vol. 51, Issue 7, pp. B83-B92 (2012)
http://dx.doi.org/10.1364/AO.51.000B83
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Abstract
Standoff laser induced breakdown spectroscopy (LIBS) has previously been used to classify trace residues as either hazardous (explosives, biological, etc.) or benign. Correct classification can become more difficult depending on the surface/substrate underneath the residue due to variations in the laser-material interaction. In addition, classification can become problematic if the substrate material has a similar elemental composition to the residue. We have evaluated coupling multivariate analysis with standoff LIBS to determine the effectiveness of classifying thin explosive residue layers on painted surfaces. Good classification results were obtained despite the fact that the painted surface contributes to the LIBS emission signal.
© 2012 Optical Society of America
OCIS Codes
(140.3440) Lasers and laser optics : Laser-induced breakdown
(300.6210) Spectroscopy : Spectroscopy, atomic
(300.6365) Spectroscopy : Spectroscopy, laser induced breakdown
History
Original Manuscript: September 27, 2011
Manuscript Accepted: November 11, 2011
Published: February 14, 2012
Citation
Frank C. De Lucia and Jennifer L. Gottfried, "Classification of explosive residues on organic substrates using laser induced breakdown spectroscopy," Appl. Opt. 51, B83-B92 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-7-B83
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