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Title: Trace explosives detection by cavity ring-down spectroscopy (CRDS)
Authors: Stromer, Bobbi S.
Bednar, Anthony J.
Janjic, Milo
Allen, John
Becker, Scott
Hargrove, John
Hargrove, James
Kylloe, Tamara
Trapani, Matt
Keywords: Explosives--Detection
Cavity-ringdown spectroscopy
Publisher: Environmental Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Technical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC/EL TR-21-5
Abstract: We built three successive versions of a thermal decomposition cavity ring-down spectrometer and tested their response to explosives. These explosive compound analyzers successfully detected nitroglycerine, 2,4,6-trinitrotoluene (TNT), pentaerythryl tetranitrate, hexahydro-1,3,5-trinitro-s-triazine and triacetone triperoxide (TATP). We determined the pathlength and limits of detection for each, with the best limit of detection being 13 parts per trillion (ppt) of TNT. For most of the explosive tests, the peak height was higher than the expected value, meaning that peroxy radical chain propagation was occurring with each of the explosives and not just the peroxide TATP.
Description: Technical Report
Gov't Doc #: ERDC/EL TR-21-5
Rights: Approved for Public Release; Distribution is Unlimited
Appears in Collections:Technical Report

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