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Proceedings Paper

Imaging open-path Fourier transform infrared spectrometer for 3D cloud profiling
Author(s): Julia Rentz Dupuis; David J. Mansur; Robert Vaillancourt; David Carlson; Thomas Evans; Elizabeth Schundler; Lori Todd; Kathleen Mottus
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Paper Abstract

OPTRA has developed an imaging open-path Fourier transform infrared (I-OP-FTIR) spectrometer for 3D profiling of chemical and biological agent simulant plumes released into test ranges and chambers. An array of I-OP-FTIR instruments positioned around the perimeter of the test site, in concert with advanced spectroscopic algorithms, enables real time tomographic reconstruction of the plume. The approach is intended as a referee measurement for test ranges and chambers. This Small Business Technology Transfer (STTR) effort combines the instrumentation and spectroscopic capabilities of OPTRA, Inc. with the computed tomographic expertise of the University of North Carolina, Chapel Hill. In this paper, we summarize the design and build and detail system characterization and test of a prototype I-OP-FTIR instrument. System characterization includes radiometric performance and spectral resolution. Results from a series of tomographic reconstructions of sulfur hexafluoride plumes in a laboratory setting are also presented.

Paper Details

Date Published: 5 May 2010
PDF: 11 pages
Proc. SPIE 7665, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XI, 766517 (5 May 2010); doi: 10.1117/12.848774
Show Author Affiliations
Julia Rentz Dupuis, OPTRA, Inc. (United States)
David J. Mansur, OPTRA, Inc. (United States)
Robert Vaillancourt, OPTRA, Inc. (United States)
David Carlson, OPTRA, Inc. (United States)
Thomas Evans, OPTRA, Inc. (United States)
Elizabeth Schundler, OPTRA, Inc. (United States)
Lori Todd, The Univ. of North Carolina at Chapel Hill (United States)
Kathleen Mottus, The Univ. of North Carolina at Chapel Hill (United States)


Published in SPIE Proceedings Vol. 7665:
Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XI
Augustus Way Fountain; Patrick J. Gardner, Editor(s)

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