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Proceedings Paper

Experimental performance of a novel aerosol sorting and deposition system for bio-threat sensing applications
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Paper Abstract

Sarnoff Corporation and the Naval Research Laboratory, through support from HSARPA, are developing an automated, high throughput bio-aerosol physical enrichment system designed for use as part of a biological-threat protection system. The Biological Aerosol-Capture-Enrichment (BioACE) system is a bio-aerosol collection system that combines three unique technologies to create physically enriched aerosol samples that can be subsequently interrogated by any number of bio-threat detection systems for the presence of threat agents. An air-to-air concentrator uses an inertial separation technique to highly concentrate an aerosol sample presented to a dual wavelength ultra-violet laser induced fluorescence (UVLIF) optical trigger used to discriminate potential threat particles from non-threat particles conveyed in a collimated particle stream. This particle classification information is used to trigger an electrostatic deposition mechanism to deposit only those particles determined to be potential bio-threats onto a stainless steel substrate. Non-threat particles are discarded with the exiting airflow. A prototype laboratory system in which particle size dependent elastic scatter rater than fluorescence provides the triggering signal has been experimentally qualified. This paper will present a detailed overview of the prototype system and discuss the physical enrichment results achieved.

Paper Details

Date Published: 13 October 2006
PDF: 13 pages
Proc. SPIE 6398, Optically Based Biological and Chemical Detection for Defence III, 63980A (13 October 2006); doi: 10.1117/12.686677
Show Author Affiliations
Timothy Pletcher, Sarnoff Corp. (United States)
Joseph McGinn, Sarnoff Corp. (United States)
David Keller, Sarnoff Corp. (United States)
Alan Huston, Naval Research Lab. (United States)
Jay Eversole, Naval Research Lab. (United States)
Vasanthi Sivaprakasam, Naval Research Lab. (United States)


Published in SPIE Proceedings Vol. 6398:
Optically Based Biological and Chemical Detection for Defence III
John C. Carrano; Arturas Zukauskas, Editor(s)

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