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http://dx.doi.org/10.11629/jpaar.2017.3.31.025

The performance of Bio-aerosol Detection System (BDS) with 405 nm laser diode  

Jeong, Young-Su (The 5th R&D Institute-3, Agency for Defense Development(ADD))
Chong, Eugene (The 5th R&D Institute-3, Agency for Defense Development(ADD))
Lee, Jong-Min (The 5th R&D Institute-3, Agency for Defense Development(ADD))
Choi, Kibong (The 5th R&D Institute-3, Agency for Defense Development(ADD))
Publication Information
Particle and aerosol research / v.13, no.1, 2017 , pp. 25-31 More about this Journal
Abstract
This paper offer the characteristics for the detection and classification of biological and non-biological aerosol particles in the air by using laser-induced-fluorescence (LIF) based Bio-aerosol Detection System (BDS). The BDS is mainly consist of an optical chamber, in-outlet nozzle system, 405 nm diode laser, an avalanche photo detector (APD) for scattering signal and photomultiplier tubes (PMT) for fluorescence signals in two different wavelength range ; F1, 510-600 nm and F2, 435-470 nm. The detection characteristics, especially ratio of fluorescence signal intensity were examined using well-known components : polystylene latex (PSL), fluorescence PSL, $2{\mu}m$ of SiO2 micro sphere, dried yeast, NADH, ovalbumin, fungicide powder and standard dust. The results indicated that the 405 nm diode laser-based LIF instrument can be a useful bio-aerosol detection system for unexpected biological threaten alter in real-time to apply for dual-use technology in military and civilian fields.
Keywords
Aerosol; Particle size distribution; Biological particle; Bio-aerosol Detection System (BDS);
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