The standoff aerosol active signature testbed (SAAST) at MIT Lincoln Laboratory

Jonathan M. Richardson; John C. Aldridge

doi:10.1117/12.630735

4 November 2005 The standoff aerosol active signature testbed (SAAST) at MIT Lincoln Laboratory

Jonathan M. Richardson, John C. Aldridge

Proceedings Volume 5995, Chemical and Biological Standoff Detection III; 59950E (2005) https://doi.org/10.1117/12.630735
Event: Optics East 2005, 2005, Boston, MA, United States

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.

Citation Download Citation

Jonathan M. Richardson and John C. Aldridge "The standoff aerosol active signature testbed (SAAST) at MIT Lincoln Laboratory", Proc. SPIE 5995, Chemical and Biological Standoff Detection III, 59950E (4 November 2005); https://doi.org/10.1117/12.630735

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