Imaging Fourier transform spectrometry of chemical plumes

Kenneth C. Bradley; Kevin C. Gross; Glen P. Perram

doi:10.1117/12.816711

8 May 2009 Imaging Fourier transform spectrometry of chemical plumes

Kenneth C. Bradley, Kevin C. Gross, Glen P. Perram

Proceedings Volume 7304, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing X; 73040J (2009) https://doi.org/10.1117/12.816711
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

A midwave infrared (MWIR) imaging Fourier transform spectrometer (FTS), the Telops FIRST-MWE (Field-portable Imaging Radiometric Spectrometer Technology - Midwave Extended) has been utilized for the standoff detection and characterization of chemical plumes. Successful collection and analysis of MWIR hyperspectral imagery of jet engine exhaust has allowed us to produce spatial profiles of both temperature and chemical constituent concentrations of exhaust plumes. Successful characterization of this high temperature combustion event has led to the collection and analysis of hyperspectral imagery of lower temperature emissions from industrial smokestacks. This paper presents MWIR data from remote collection of hyperspectral imagery of methyl salicilate (MeS), a chemical warfare agent simulant, during the Chemical Biological Distributed Early Warning System (CBDEWS) test at Dugway Proving Grounds, UT in 2008. The data did not contain spectral lines associated with emission of MeS. However, a few broad spectral features were present in the background-subtracted plume spectra. Further analysis will be required to assign these features, and determine the utility of MWIR hyperspectral imagery for analysis of chemical warfare agent plumes.

Citation Download Citation

Kenneth C. Bradley, Kevin C. Gross, and Glen P. Perram "Imaging Fourier transform spectrometry of chemical plumes", Proc. SPIE 7304, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing X, 73040J (8 May 2009); https://doi.org/10.1117/12.816711

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