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Proceedings Paper

Chamber LIDAR measurements of aerosolized biological simulants
Author(s): David M. Brown; Evan P. Thrush; Michael E. Thomas; Karen M. Siegrist; Kevin Baldwin; Jason Quizon; Christopher C. Carter
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Paper Abstract

A chamber aerosol LIDAR is being developed to perform well-controlled tests of optical scattering characteristics of biological aerosols, including Bacillus atrophaeus (BG) and Bacillus thuringiensis (BT), for validation of optical scattering models. The 1.064 μm, sub-nanosecond pulse LIDAR allows sub-meter measurement resolution of particle depolarization ratio or backscattering cross-section at a 1 kHz repetition rate. Automated data acquisition provides the capability for real-time analysis or recording. Tests administered within the refereed 1 cubic meter chamber can provide high quality near-field backscatter measurements devoid of interference from entrance and exit window reflections. Initial chamber measurements of BG depolarization ratio are presented.

Paper Details

Date Published: 8 May 2009
PDF: 9 pages
Proc. SPIE 7304, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing X, 73040A (8 May 2009); doi: 10.1117/12.818947
Show Author Affiliations
David M. Brown, The Johns Hopkins Univ. Applied Physics Lab. (United States)
Evan P. Thrush, The Johns Hopkins Univ. Applied Physics Lab. (United States)
Michael E. Thomas, The Johns Hopkins Univ. Applied Physics Lab. (United States)
Karen M. Siegrist, The Johns Hopkins Univ. Applied Physics Lab. (United States)
Kevin Baldwin, The Johns Hopkins Univ. Applied Physics Lab. (United States)
Jason Quizon, The Johns Hopkins Univ. Applied Physics Lab. (United States)
Christopher C. Carter, The Johns Hopkins Univ. Applied Physics Lab. (United States)


Published in SPIE Proceedings Vol. 7304:
Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing X
Augustus W. Fountain; Patrick J. Gardner, Editor(s)

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