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18 May 2006 Spectroscopic signatures of PETN: Part II. Detection in clay
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Abstract
Infrared Spectroscopy is a well established tool for standoff detection of chemical agents in military applications. Vibrational IR spectroscopic analysis can also be used in Chemical Point Detection mode and to the arena of explosives identification and detection when energetic compounds are in contact with soil. PETN is an important nitroaliphatic explosive for military applications. Due to its intrinsic explosive power, it can be used in laminar form or mixed with RDX to manufacture Semtex plastic explosive and in the fabrication of Improvised Explosive Devices (IEDs). This investigation focused on the study of spectroscopic signatures of PETN in contact with soil. For this study, clay was mixed in different proportions with PETN. Detection of the vibrational signatures of PETN constitutes the central part of the investigation. The mixtures were submitted to the effect of water, acid and alkaline solutions, heat and deep UV light (234 nm) in order to establish the effect on these environmental parameters on the vibrational signatures of the explosive in the mixtures. The results reveal that the characteristic bands of PETN are highly persisted, degraded only by extreme conditions of UV radiation and exposure to high temperature for prolonged time. These results could be used in the development of sensitive sensors for detection of landmines, and improvised explosives devices (IDEs).
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Luz Marina Ballesteros-Rueda, Gloria M. Herrera-Sandoval, Nairmen Mina, Miguel E. Castro-Rosario, Julio G. Briano, and Samuel P. Hernandez-Rivera "Spectroscopic signatures of PETN: Part II. Detection in clay", Proc. SPIE 6217, Detection and Remediation Technologies for Mines and Minelike Targets XI, 62173D (18 May 2006); https://doi.org/10.1117/12.666539
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