15 April 2008 Spectral signatures for volatile impurities in TNT and RDX based explosives
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Abstract
Vapor phase sensing and detection of TNT-based explosives is extremely challenging due in part to the low vapor pressure of TNT. We believe one effective strategy for optically based sensing of TNT-based explosives involves focusing not on the spectral signature for pure TNT, but rather on a more volatile series of compounds that are present in TNT as impurities. To date we have catalogued and reported a number of rotationally resolved infrared transition frequencies for nitrobenzene, toluene, o-nitrotoluene, and m-nitrotoluene in the 14 micron region. Here we describe the use of an in-house spectral calibration program that while designed for calibration of Pb-salt diode laser spectra, is quite general and could be utilized for many spectroscopic detection and/or analysis applications. Finally, a sensing measurement for a volatile organic impurity related to RDX-based explosives such as C4 is presented and discussed.
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Tabetha Osborn, Tabetha Osborn, Sindhu Kaimal, Sindhu Kaimal, William Burns, William Burns, Alan R. Ford, Alan R. Ford, Scott W. Reeve, Scott W. Reeve, } "Spectral signatures for volatile impurities in TNT and RDX based explosives", Proc. SPIE 6945, Optics and Photonics in Global Homeland Security IV, 69451B (15 April 2008); doi: 10.1117/12.777844; https://doi.org/10.1117/12.777844
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