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Proceedings Paper

Thin film resonators as mass transducers for explosives detection
Author(s): Christopher Linnen; Paul H. Kobrin; Charles Seabury; Alan B. Harker; Robert Andrew McGill; Eric J. Houser; Russell Chung; R. Weber; Timothy M. Swager
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Paper Abstract

Sub-miniature thin film resonators (TFR) operating near 2 GHz are being developed as mass transducers for high- sensitivity vapor detection. The TFR sensor are coated with species selective vapor absorbing polymers to develop pattern response to the target species for detection and identification. Eight member arrays of TFR sensor have been fabricated and tested for the detection of characteristics explosive vapors including trinitrotoluene, dinitrotoluene, and dinitrobenzene. The TFR sensor use aluminum nitride as the active piezoelectric element and have ben fabricated with resonator quality factors greater than 200. Response patterns and sensitivity measurements are being made using pure vapors, water solutions of the target species, and solid contaminated with the target vapor species.

Paper Details

Date Published: 2 August 1999
PDF: 7 pages
Proc. SPIE 3710, Detection and Remediation Technologies for Mines and Minelike Targets IV, (2 August 1999); doi: 10.1117/12.357056
Show Author Affiliations
Christopher Linnen, Rockwell Science Ctr. (United States)
Paul H. Kobrin, Rockwell Science Ctr. (United States)
Charles Seabury, Rockwell Science Ctr. (United States)
Alan B. Harker, Rockwell Science Ctr. (United States)
Robert Andrew McGill, Naval Research Lab. (United States)
Eric J. Houser, Naval Research Lab. (United States)
Russell Chung, Iowa State Univ. (United States)
R. Weber, Geo-Centers Inc. (United States)
Timothy M. Swager, Massachusetts Institute of Technology (United States)

Published in SPIE Proceedings Vol. 3710:
Detection and Remediation Technologies for Mines and Minelike Targets IV
Abinash C. Dubey; James F. Harvey; J. Thomas Broach; Regina E. Dugan, Editor(s)

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