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Laser based Standoff Detection of Explosives: Combination of Complementary Methods

Walter, Arne and Kölbl, Christoph and Duschek, Frank (2017) Laser based Standoff Detection of Explosives: Combination of Complementary Methods. ISADE 2017, 17.-21. Sep. 2017, Oxford, UK. (Unpublished)

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Abstract

Laser based detection systems provide safe and discreet detection and identification of explosives. It is highly suitable for applications like access surveillance at airports or events, monitoring of public events or identification of unknown substances for first responders. They allow direct online measurements from a safe distance to the subject without exposure of personnel or equipment. Raman and Mid-IR absorption spectroscopy yield spectral fingerprints of explosive and hazardous material with concentrations in the range of µg. Comparison with a database by machine learning algorithms results in real-time identification. Since both methods provide complementary spectral information, combined use of both techniques is ideal for a reliable detection and identification. In pursuit of a compact and portable detection system that utilizes deep UV-Raman and Mid-IR absorption, the focus in this presentation was set to the distinction of precursor materials from different backgrounds like textiles. First results for standoff distances below 1 m, both pure and infiltrated in fabric, are promising.

Item URL in elib:https://elib.dlr.de/116225/
Document Type:Conference or Workshop Item (Poster)
Title:Laser based Standoff Detection of Explosives: Combination of Complementary Methods
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Walter, Arnearne.walter (at) dlr.dehttps://orcid.org/0000-0002-4377-9152
Kölbl, Christophchristoph.koelbl (at) dlr.deUNSPECIFIED
Duschek, Frankfrank.duschek (at) dlr.dehttps://orcid.org/0000-0002-1809-0257
Date:September 2017
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Unpublished
Keywords:Standoff detection, Raman, Mid-IR, Explosives
Event Title:ISADE 2017
Event Location:Oxford, UK
Event Type:international Conference
Event Dates:17.-21. Sep. 2017
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignment
DLR - Research theme (Project):L - no assignment
Location: Lampoldshausen
Institutes and Institutions:Institute of Technical Physics > Atmospheric Propagation and Effect
Deposited By: Walter, Arne
Deposited On:06 Dec 2017 12:13
Last Modified:06 Dec 2017 12:13

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