Imaging open-path Fourier transform infrared spectrometer for 3D cloud profiling

Julia Rentz Dupuis; David J. Mansur; Robert Vaillancourt; David Carlson; Thomas Evans; Elizabeth Schundler; Lori Todd; Kathleen Mottus

doi:10.1117/12.848774

5 May 2010 Imaging open-path Fourier transform infrared spectrometer for 3D cloud profiling

Julia Rentz Dupuis, David J. Mansur, Robert Vaillancourt, David Carlson, Thomas Evans, Elizabeth Schundler, Lori Todd, Kathleen Mottus

Author Affiliations +

Proceedings Volume 7665, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XI; 766517 (2010) https://doi.org/10.1117/12.848774
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

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.

Citation Download Citation

Julia Rentz Dupuis, David J. Mansur, Robert Vaillancourt, David Carlson, Thomas Evans, Elizabeth Schundler, Lori Todd, and Kathleen Mottus "Imaging open-path Fourier transform infrared spectrometer for 3D cloud profiling", Proc. SPIE 7665, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XI, 766517 (5 May 2010); https://doi.org/10.1117/12.848774

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