Detection of emission sources using passive-remote Fourier transform infrared spectroscopy

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The detection and identification of toxic chemicals released in the environment is important for public safety. Passive-remote Fourier transform infrared (FTIR) spectrometers can be used to detect these releases. Their primary advantages are their small size and ease of setup and use. Open-path FTIR spectrometers are used to detect concentrations of pollutants from a fixed frame of reference. These instruments detect plumes, but they are too large and difficult to aim to be used to track a plume to its source. Passive remote FTIR spectrometers contain an interferometer, optics, and a detector. They can be used on tripods and in ... continued below

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13 p.

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Demirgian, J.C.; Macha, S.M.; Darby, S.M. & Ditillo, J. April 1, 1995.

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Description

The detection and identification of toxic chemicals released in the environment is important for public safety. Passive-remote Fourier transform infrared (FTIR) spectrometers can be used to detect these releases. Their primary advantages are their small size and ease of setup and use. Open-path FTIR spectrometers are used to detect concentrations of pollutants from a fixed frame of reference. These instruments detect plumes, but they are too large and difficult to aim to be used to track a plume to its source. Passive remote FTIR spectrometers contain an interferometer, optics, and a detector. They can be used on tripods and in some cases can be hand-held. A telescope can be added to most units. We will discuss the capability of passive-remote FTIR spectrometers to detect the origin of plumes. Low concentration plumes were released using a custom-constructed vaporizer. These plumes were detected with different spectrometers from different distances. Passive-remote spectrometers were able to detect small 10 cm on a side chemical releases at concentration-pathlengths at the low parts per million-meter (ppm-m) level.

Physical Description

13 p.

Notes

INIS; OSTI as DE95009920

Source

  • 4. international symposium on field screening methods for hazardous wastes and toxic chemicals, Las Vegas, NV (United States), 22-24 Feb 1995

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  • Other: DE95009920
  • Report No.: ANL/CMT-ACL/CP--83198
  • Report No.: CONF-950209--7
  • Grant Number: W-31109-ENG-38
  • DOI: 10.2172/57254 | External Link
  • Office of Scientific & Technical Information Report Number: 57254
  • Archival Resource Key: ark:/67531/metadc691332

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • April 1, 1995

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Dec. 15, 2015, 11:42 a.m.

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Demirgian, J.C.; Macha, S.M.; Darby, S.M. & Ditillo, J. Detection of emission sources using passive-remote Fourier transform infrared spectroscopy, report, April 1, 1995; Illinois. (digital.library.unt.edu/ark:/67531/metadc691332/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.