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Proceedings Paper

Progress in use of carbon-black-polymer composite vapor detector arrays for land mine detection
Author(s): Shawn M. Briglin; Michael C. Burl; Michael S. Freund; Nathan Saul Lewis; Adam J. Matzger; D. Nelson Ortiz; Phil Tokumaru
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Paper Abstract

Thin films of carbon black-organic polymer composites have been deposited across two metallic leads, with swelling- induced resistance changes of the films signaling the presence of vapors. To identify and classify vapors, arrays of such vapor sensing elements have been constructed. Each element contained a different organic polymer as the insulating phase. The differing gas-solid partition coefficients for the various polymers of the detector array produced a pattern of resistance changes that was used to classify vapors and vapor mixtures. The performance of this system towards DNT, the predominant signature in the vapor phase above land miens, has been evaluated in detail, with robust detection demonstrated in the laboratory in less than 5 s in air at DNT levels in the low ppb range.

Paper Details

Date Published: 22 August 2000
PDF: 9 pages
Proc. SPIE 4038, Detection and Remediation Technologies for Mines and Minelike Targets V, (22 August 2000); doi: 10.1117/12.396281
Show Author Affiliations
Shawn M. Briglin, California Institute of Technology (United States)
Michael C. Burl, Jet Propulsion Lab. (United States)
Michael S. Freund, California Institute of Technology (United States)
Nathan Saul Lewis, California Institute of Technology (United States)
Adam J. Matzger, California Institute of Technology (United States)
D. Nelson Ortiz, California Institute of Technology (United States)
Phil Tokumaru, AeroVironment Inc. (United States)


Published in SPIE Proceedings Vol. 4038:
Detection and Remediation Technologies for Mines and Minelike Targets V
Abinash C. Dubey; James F. Harvey; J. Thomas Broach; Regina E. Dugan, Editor(s)

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