Physical Sciences Inc. Publications Abstract: Visualization and Tomographic Analysis of Chemical Vapor Plumes via LWIR Imaging Fabry-Perot Spectrometry

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Abstract: Visualization and Tomographic Analysis of Chemical Vapor Plumes via LWIR Imaging Fabry-Perot Spectrometry

Bogdan R. Cosofret, Christopher M. Gittins, William J. Marinelli, "Visualization and Tomographic Analysis of Chemical Vapor Plumes via LWIR Imaging Fabry-Perot Spectrometry ," presented at 6th Joint Conference on Standoff Detection for Chemical and Biological Defense (Williamsburg, VA) , (25-29 October2004).

Abstract

Physical Sciences Inc. (PSI) has recently demonstrated near real-time visualization of chemical vapor plumes via LWIR imaging Fabry-Perot Spectrometry. Simultaneous viewing of the plume from orthogonal lines-of-sight enables estimation of the 3-D plume concentration profile via tomographic analysis of the 2-D chemical images produced by each spectrometer. The PSI tomographic algorithm is capable of generating 3-D density distributions of the chemical cloud that are consistent with atmospheric model predictions even in the extreme limitation of using only two sensors viewing the chemical plume.

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