Nothing Special   »   [go: up one dir, main page]
Back to articles
Articles
Volume: 28 | Article ID: art00006
Image
Multi-spectral Infrared Computed Tomography
Philip Bingham
Marissa E Morales-Rodriguez
Panos Datskos
David Graham
  DOI :  10.2352/ISSN.2470-1173.2016.19.COIMG-170  Published Online :  February 2016
Abstract

Precise measurement of spatial gas concentrations in an uncontrolled outdoor environment is needed for environmental studies. In this effort, a multispectral imaging system has been developed incorporating quantum cascade laser (QCL) modules with an iterative computed tomography algorithm to sense a transmission spectrum response for each voxel. With spatially distributed spectral data, researchers will be able to identify gas composition and concentration distributions over a region of interest. The QCL system uses multiple modules covering wavelength ranges from 3.77μm to 12.5μm to detect both carbon dioxide (4.2μm) and methane (7.5μm) greenhouse gasses. Simulation and lab studies have been performed for a system using a circular arrangement of mirrors to transmit and reproject the QCL beam around the detector circle. The QCL transmission system has been tested in both controlled indoor environments and uncontrolled outdoor environments to quantify sensitivity.

Journal Title : Electronic Imaging
Publisher Name : Society for Imaging Science and Technology
Publisher Location : 7003 Kilworth Lane, Springfield, VA 22151 USA
Subject Areas :
Views 89
Downloads 6
 DOI 10.2352/ISSN.2470-1173.2016.19.COIMG-170
 articleview.views 89
 articleview.downloads 6
  Cite this article 

Philip Bingham, Marissa E Morales-Rodriguez, Panos Datskos, David Graham, "Multi-spectral Infrared Computed Tomography"  in Proc. IS&T Int’l. Symp. on Electronic Imaging: Computational Imaging XIV,  2016,  https://doi.org/10.2352/ISSN.2470-1173.2016.19.COIMG-170

 Copy citation
  Copyright statement 
Copyright © Society for Imaging Science and Technology 2016
72010604
Electronic Imaging
2470-1173
Society for Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151 USA
10.2352/ISSN.2470-1173.2016.19.COIMG-170
2470-1173(20160214)2016:19L.1;1-
ei_24701173_v2016n19_input/s17.xml
/ist/ei/2016/00002016/00000019/art00006
Articles
Multi-spectral Infrared Computed Tomography
BinghamPhilip
Morales-RodriguezMarissa E
DatskosPanos
GrahamDavid
14022016
2016
19
1
5
2016
Precise measurement of spatial gas concentrations in an uncontrolled outdoor environment is needed for environmental studies. In this effort, a multispectral imaging system has been developed incorporating quantum cascade laser (QCL) modules with an iterative computed tomography algorithm to sense a transmission spectrum response for each voxel. With spatially distributed spectral data, researchers will be able to identify gas composition and concentration distributions over a region of interest. The QCL system uses multiple modules covering wavelength ranges from 3.77μm to 12.5μm to detect both carbon dioxide (4.2μm) and methane (7.5μm) greenhouse gasses. Simulation and lab studies have been performed for a system using a circular arrangement of mirrors to transmit and reproject the QCL beam around the detector circle. The QCL transmission system has been tested in both controlled indoor environments and uncontrolled outdoor environments to quantify sensitivity.