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Development of a laser-induced breakdown spectroscopy instrument for detection and classification of single particle aerosols in real-time
Department of CBRN Defence and Security (FOI), Umeå.
Department of CBRN Defence and Security (FOI), Umeå.
Department of CBRN Defence and Security (FOI), Umeå.
Department of CBRN Defence and Security (FOI), Umeå.
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2013 (English)In: Optics Communications, ISSN 0030-4018, E-ISSN 1873-0310, Vol. 296, 106-108 p.Article in journal (Refereed) Published
Abstract [en]

Detection of aerosolized biological warfare agents by means of LIBS commonly operate with pulsed lasers running at constant repetition rate, resulting in very low hit rates. In this paper, we present a prototype where the LIBS laser is only fired if a particle is expected in the focal zone. A significantly improved hit rate for detection and classification of μm sized single particles in real-time is achieved. Hit rates of 40% and 70% for NaCl particles of sizes 3 and 7.0μm, respectively, can be reached in triggered configuration, as compared to 1% and 2% when the laser is un-triggered.

Place, publisher, year, edition, pages
Elsevier, 2013. Vol. 296, 106-108 p.
Keyword [en]
LIBS; Triggered; Hit rate; Single particle; Real-time; TOF
National Category
Atom and Molecular Physics and Optics
Research subject
Physics
Identifiers
URN: urn:nbn:se:umu:diva-64438DOI: 10.1016/j.optcom.2013.01.044OAI: oai:DiVA.org:umu-64438DiVA: diva2:601286
Available from: 2013-01-29 Created: 2013-01-29 Last updated: 2017-12-06Bibliographically approved

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