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Novel standoff detection system for the classification of chemical and biological hazardous substances combining temporal and spectral laser induced fluorescence techniques

Gebert, Florian and Kraus, Marian and Fellner, Lea and Walter, Arne and Pargmann, Carsten and Grünewald, Karin and Duschek, Frank (2018) Novel standoff detection system for the classification of chemical and biological hazardous substances combining temporal and spectral laser induced fluorescence techniques. European Physical Journal Plus, 133 (269). Springer. DOI: 10.1140/epjp/i2018-12147-2 ISSN 2190-5444

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Abstract

In an effort to reduce the potential risk of human exposure to chemical and biological hazardous materials, the demand increases for a detection system which rapidly identifies possible threats from a distance to avoid direct human contact to these materials. In this scope, we present a novel detection system which is able to measure simultaneously spectrally and temporally resolved laser-induced fluorescence (LIF) signals excited by two consecutive laser pulses with different central wavelengths at 266 nm and 355 nm. As is shown in this paper, the setup enables fast data acquisition that provides a complete dataset in less than a few milliseconds at repetition rates of 100 Hz. Furthermore, with its modular design, it can be transported easily for operation at different locations. First measurements indicate a high performance with an accuracy of more than 97% in the distinguishability of bacterial specimen within a limited set of three representative bacterial species, namely Bacillus thuringiensis, Micrococcus luteus and Oligella urethralis. Together with the consecutive classification procedure, the setup promises to become a valuable tool for standoff detection of bio-hazards.

Item URL in elib:https://elib.dlr.de/122777/
Document Type:Article
Title:Novel standoff detection system for the classification of chemical and biological hazardous substances combining temporal and spectral laser induced fluorescence techniques
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gebert, Florianflorian.gebert (at) dlr.dehttps://orcid.org/0000-0003-4009-549X
Kraus, MarianMarian.Kraus (at) dlr.dehttps://orcid.org/0000-0002-5385-9420
Fellner, Lealea.fellner (at) dlr.dehttps://orcid.org/0000-0002-1359-0260
Walter, Arnearne.walter (at) dlr.dehttps://orcid.org/0000-0002-4377-9152
Pargmann, CarstenCarsten.Pargmann (at) dlr.dehttps://orcid.org/0000-0003-3688-6360
Grünewald, Karinkarin.gruenewald (at) dlr.dehttps://orcid.org/0000-0003-0922-2307
Duschek, FrankFrank.Duschek (at) dlr.dehttps://orcid.org/0000-0002-1809-0257
Date:23 July 2018
Journal or Publication Title:European Physical Journal Plus
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:133
DOI :10.1140/epjp/i2018-12147-2
Editors:
EditorsEmail
D'Arienzo, MarcoUNSPECIFIED
Malizia, AndreaUNSPECIFIED
Publisher:Springer
Series Name:New Technologies Related to International and Accidental Release of CBRNe Agents
ISSN:2190-5444
Status:Published
Keywords:Multispectral laser induced fluorescence, Fluorescence lifetime measurement, Standoff detection, Classification
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Laser Research and Technology, R - Vorhaben Optische Fernerkundung für sicherheitsrelevante Anwendungen
Location: Lampoldshausen
Institutes and Institutions:Institute of Technical Physics > Atmospheric Propagation and Effect
Deposited By: Gebert, Florian
Deposited On:07 Jan 2019 13:46
Last Modified:31 Jul 2019 20:20

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