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Prospects for biological and chemical substance classification using a standoff laser induced fluorescence detection system

Gebert, Florian and Fellner, Lea and Kraus, Marian and Duschek, Frank (2018) Prospects for biological and chemical substance classification using a standoff laser induced fluorescence detection system. In: 4th International Symposium on Development of CBRN Protection Capabilities. 4th International Symposium on Development of CBRN Protection Capabilities, 03.-05.09.2018, Berlin.

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Abstract

After accidental or intended release of chemical or biological hazardous materials, fast detection and classification is mandatory to be able to rapidly take steps against negative consequences on humans. Standoff laser based devices are suited to localize and classify a thread on short timescales without the need of direct human contact to these materials. In this scope we present the classification prospects of our standoff detection system that utilizes laser induced fluorescence signals excited with laser pulses of two different UV excitation wavelengths. For fast data acquisition we use a rather limited spectral resolution of 32 channels per wavelength which is sufficient to achieve a good performance. The described system is able to perform a complete classification procedure including data acquisition, data analysis and classification and to get an assignment of the measured sample after a few seconds. The identification and classification prospects are evaluated by classifying measured sample spectra using a model which is based on a previously acquired reference database. Within the set, different representatives for bacterial and chemical agents as well as background materials as diesel and pollen are investigated. The performance, namely the classification accuracy and false alarm rates, is evaluated for differently sized classes down to an identification of the investigated set of materials.

Item URL in elib:https://elib.dlr.de/124740/
Document Type:Conference or Workshop Item (Speech)
Title:Prospects for biological and chemical substance classification using a standoff laser induced fluorescence detection system
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gebert, Florianflorian.gebert (at) dlr.dehttps://orcid.org/0000-0003-4009-549X
Fellner, Lealea.fellner (at) dlr.dehttps://orcid.org/0000-0002-1359-0260
Kraus, MarianMarian.Kraus (at) dlr.dehttps://orcid.org/0000-0002-5385-9420
Duschek, FrankFrank.Duschek (at) dlr.dehttps://orcid.org/0000-0002-1809-0257
Date:4 September 2018
Journal or Publication Title:4th International Symposium on Development of CBRN Protection Capabilities
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Laser induced Fluorescence, standoff detection, chemical and biological agents, classification of hazardous substances
Event Title:4th International Symposium on Development of CBRN Protection Capabilities
Event Location:Berlin
Event Type:international Conference
Event Dates:03.-05.09.2018
Organizer:DEUTSCHEN GESELLSCHAFT FÜR WEHRTECHNIK e.V. (DWT)
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 13:47
Last Modified:31 Jul 2019 20:22

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