LASER PHOTOACOUSTIC DETECTION OF EXPLOSIVE VAPORS

Development of a device using photoacoustic spectroscopy for the detection of vapors from explosives is discussed; the detector under consideration involves spectral identification of vapors with a CO2 laser. Studies of the identification of vapors such as ethylene glycol dinitrate, nitroglycerine, 2,4-DNT, diphenylamine, methylamine and cyclohexanone, as well as interference species such as acetone, heptane freon and ammonia are reported; detection limits in the 0.05 part per billion range are contemplated. The design program aims at producing a portable detector needing little maintenance and costing less than current x-ray devices.

  • Supplemental Notes:
    • Optics in Security and Law Enforcement; Proceedings of the Seminar, Reston, Virginia, April 18-21, 1977. Sponsored by the Society of Photo-Optical Instrumentation Engineers, Bellingham, Washington.
  • Corporate Authors:

    Society of Photo-Optical Instrumentation Engineers

    119 Palos Verdes Boulvard
    Redondo Beach, CA  USA  90277
  • Authors:
    • Gelbwachs, J
  • Publication Date: 1977

Media Info

  • Pagination: p. 10-15
  • Serial:
    • Volume: 108

Subject/Index Terms

Filing Info

  • Accession Number: 00180139
  • Record Type: Publication
  • Source Agency: National Aeronautics and Space Administration
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Sep 27 1978 12:00AM