Progress in use of carbon black-polymer composite vapor detector arrays for land mine detection

Shawn M. Briglin; Michael C. Burl; Michael S. Freund; Nathan S Lewis; Adam Matzger; D. Nelson Ortiz; Phil Tokumaru

Progress in use of carbon black-polymer composite vapor detector arrays for land mine detection

Shawn M. Briglin, Michael C. Burl, Michael S. Freund, Nathan S Lewis, Adam Matzger, D. Nelson Ortiz, Phil Tokumaru

California Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

6 Citations (Scopus)

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 mines, 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.

Original language	English
Title of host publication	Proceedings of SPIE - The International Society for Optical Engineering
Publisher	Society of Photo-Optical Instrumentation Engineers
Volume	4038
Publication status	Published - 2000
Event	Detection and Remediation Technologies for Mines and Mineliken Targets V - Orlando, FL, USA Duration: Apr 24 2000 → Apr 28 2000

Other

Other	Detection and Remediation Technologies for Mines and Mineliken Targets V
City	Orlando, FL, USA
Period	4/24/00 → 4/28/00

ASJC Scopus subject areas

Electrical and Electronic Engineering
Condensed Matter Physics

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Progress in use of carbon black-polymer composite vapor detector arrays for land mine detection. / Briglin, Shawn M.; Burl, Michael C.; Freund, Michael S.; Lewis, Nathan S; Matzger, Adam; Ortiz, D. Nelson; Tokumaru, Phil.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4038 Society of Photo-Optical Instrumentation Engineers, 2000.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Briglin, SM, Burl, MC, Freund, MS, Lewis, NS, Matzger, A, Ortiz, DN & Tokumaru, P 2000, Progress in use of carbon black-polymer composite vapor detector arrays for land mine detection. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 4038, Society of Photo-Optical Instrumentation Engineers, Detection and Remediation Technologies for Mines and Mineliken Targets V, Orlando, FL, USA, 4/24/00.

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AU - Ortiz, D. Nelson

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AB - 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 mines, 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.

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