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13 May 2011 Vibrational spectroscopy standoff detection of threat chemicals
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Abstract
Spectroscopy based standoff detection systems: Raman and FTIR have been tested for detection of threat chemicals, including highly energetic materials, homemade explosives, explosives formulations and high explosives mixtures. Other threat chemicals studied included toxic industrial compounds (TIC) and chemical agent simulants. Microorganisms and biological threat agent simulants have also been detected at standoff distances. Open Path FTIR has been used to detect vapors and chemicals deposited on metal surfaces at μg/cm2 levels at distances as far as 30 m in active mode and 60 m in passive mode. In the case of Raman telescope, standoff distances for acetonitrile and ammonium nitrate were 140 m.
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William Ortiz-Rivera, Leonardo C. Pacheco-Londoño, John R. Castro-Suarez, Hilsamar Felix-Rivera, and Samuel P. Hernandez-Rivera "Vibrational spectroscopy standoff detection of threat chemicals", Proc. SPIE 8031, Micro- and Nanotechnology Sensors, Systems, and Applications III, 803129 (13 May 2011); doi: 10.1117/12.884433; https://doi.org/10.1117/12.884433
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