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Contact-free and fast detection of energetic materials in containments

Wild, Dominik and Theiß, Cathrin and Holl, Gerhard (2021) Contact-free and fast detection of energetic materials in containments. European Physical Journal Plus, 136 (4). Springer. doi: 10.1140/epjp/s13360-021-01406-y. ISSN 2190-5444.

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Official URL: http://dx.doi.org/10.1140/epjp/s13360-021-01406-y


The identification of energetic materials in containments is an important challenge for analytical methods in the field of safety and security. Opening a package without knowledge of its contents and the resulting hazards is highly involved with risks and should be avoided whenever possible. Therefore, preferable methods work non-destructive with minimal interaction and are capable of identifying target substances in a containment quickly and reliably. Most spectroscopic methods find their limits, if the target substance is shielded by a covering material. To solve this problem, a combined laser drilling method with subsequent identification of the target substance by means of Raman spectroscopic measurements through microscopic bore holes of the covering material is presented. A pulsed laser beam is used for both the drilling process and as an excitation source for Raman measurements in the same optical setup. Results show the ability of this new method to gain high-quality spectra even when performed through microscopic small bore channels. With the laser parameters chosen right, the method can even be performed on highly sensitive explosives like triacetone triperoxide (TATP). Another advantageous effect arises in an observed reduction in unwanted fluorescence signal in the spectral data, resulting from the confocal-like measurement setup with the bore hole acting as aperture.

Item URL in elib:https://elib.dlr.de/142006/
Document Type:Article
Title:Contact-free and fast detection of energetic materials in containments
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Wild, DominikUNSPECIFIEDhttps://orcid.org/0000-0002-6474-985XUNSPECIFIED
Date:23 April 2021
Journal or Publication Title:European Physical Journal Plus
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Series Name:Focus Point on New Technologies for Detection, Protection, Decontamination and Developments of the Decision Support Systems in Case of CBRNe Events
Keywords:Laser, Detection, Energetic Materials, Raman Spectroscopy, Laser drilling
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignment
DLR - Program:no assignment
DLR - Research theme (Project):no assignment
Location: Rhein-Sieg-Kreis
Institutes and Institutions:Institute for the Protection of Terrestrial Infrastructures
Deposited By: Wild, Dr. Dominik
Deposited On:28 Apr 2021 09:57
Last Modified:24 May 2022 23:47

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