Electrostatic, non-fluorescent trigger for aerosolized biological threats using fluctuation enhanced sensing.

Award Information
Agency: Department of Defense
Branch: Office for Chemical and Biological Defense
Contract: W911SR-09-P-0042
Agency Tracking Number: C091-109-0153
Amount: $70,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2009
Solicitation Year: 2009
Solicitation Topic Code: CBD09-109
Solicitation Number: 2009.1
Small Business Information
Orono Spectral Solutions Inc.
983 Stillwater Avenue, Old Town, ME, 04468
DUNS: 171899805
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Luke Doucette
 Vice President
 (866) 269-8007
 luke.doucette@ossmaine.com
Business Contact
 Luke Doucette
Title: Vice President
Phone: (866) 269-8007
Email: luke.doucette@ossmaine.com
Research Institution
N/A
Abstract
The objective of this Phase I proposal is to perform a theoretical exploration of the fundamental and practical limits of detection by fluctuation enhanced sensing and statistical inference based sensing methods when applied to an electrostatic-based trigger for non-fluorescent biological warfare threats. To enable < 1000 ACPLA detection levels of bacterial spores in real-time, these statistical methods will be applied to electrometer noise patterns when particle concentrations produce electric currents that are at or below the characteristic signal-to-noise level of the electrometer. The proposed hardware design for the electrostatic trigger is based upon the Faraday cup electrometer design for detecting ionized/unipolar charged aerosol particles. The electrostatic trigger will be a modification of an existing electrostatic precipitator detection system that is currently being developed. To facilitate low detection levels of bacterial spores beyond conventional Faraday cup designs, a novel corona pre-charge section will be incorporated within the trigger. The corona pre-charge section will maximize the amount of imparted charge per spore, thereby resulting in the largest possible electric currents produced per spore as measured by the collector cup.

* information listed above is at the time of submission.

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