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Proceedings Paper

Through-container THz sensing: applications for biodetection
Author(s): David J. Cook; Brian K. Decker; Gami Dadusc; Mark G. Allen
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Paper Abstract

The potential container penetrating capabilities of THz radiation leads to possible applications for container penetrating sensors for biological hazards. Such an approach requires the presence of distinct THz frequency resonances in the target compounds coupled with sufficiently transparent container materials to allow through container sensing. The results of a THz spectroscopic survey of container and clothing materials are presented along with spectra of materials that were chosen as simulants and markers for illicit biological substances. The spectroscopic data presented show at least partial transparency for materials commonly used for clothing and packaging. We also measure distinct spectral signatures in dipicolinic acid, calcium dipicolinate, peptidoglycan, and 2,6-diaminopimelic acid, biologically significant molecules that are indicative of hazardous spore forming bacteria. These spectra differ significantly from those of the container materials to provide a potential contrast mechanism which could be used for identification.

Paper Details

Date Published: 27 February 2004
PDF: 7 pages
Proc. SPIE 5268, Chemical and Biological Standoff Detection, (27 February 2004); doi: 10.1117/12.518127
Show Author Affiliations
David J. Cook, Physical Sciences Inc. (United States)
Brian K. Decker, Physical Sciences Inc. (United States)
Gami Dadusc, Physical Sciences Inc. (United States)
Mark G. Allen, Physical Sciences Inc. (United States)

Published in SPIE Proceedings Vol. 5268:
Chemical and Biological Standoff Detection
James O. Jensen; Jean-Marc Theriault, Editor(s)

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