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Proceedings Paper

The standoff aerosol active signature testbed (SAAST) at MIT Lincoln Laboratory
Author(s): Jonathan M. Richardson; John C. Aldridge
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Paper Abstract

Standoff LIDAR detection of BW agents depends on accurate knowledge of the infrared and ultraviolet optical elastic scatter (ES) and ultraviolet fluorescence (UVF) signatures of bio-agents and interferents. MIT Lincoln Laboratory has developed the Standoff Aerosol Active Signature Testbed (SAAST) for measuring ES cross sections from BW simulants and interferents at all angles including 180º (direct backscatter). Measurements of interest include the dependence of the ES and UVF signatures on several spore production parameters including growth medium, sporulation protocol, washing protocol, fluidizing additives, and degree of aggregation. Using SAAST, we have made measurements of the ES signature of Bacillus globigii (atropheaus, Bg) spores grown under different growth methods. We have also investigated one common interferent (Arizona Test Dust). Future samples will include pollen and diesel exhaust. This paper presents the details of the SAAST apparatus along with the results of recent measurements.

Paper Details

Date Published: 4 November 2005
PDF: 8 pages
Proc. SPIE 5995, Chemical and Biological Standoff Detection III, 59950E (4 November 2005); doi: 10.1117/12.630735
Show Author Affiliations
Jonathan M. Richardson, Massachusetts Institute of Technology Lincoln Lab. (United States)
John C. Aldridge, Massachusetts Institute of Technology Lincoln Lab. (United States)

Published in SPIE Proceedings Vol. 5995:
Chemical and Biological Standoff Detection III
James O. Jensen; Jean-Marc Thériault, Editor(s)

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