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Field validation of a mobile detection system for laser scattering measurements in the NIR range

Peckhaus, Andreas and Elsässer, Fabian and Hall, Thomas and Duschek, Frank (2022) Field validation of a mobile detection system for laser scattering measurements in the NIR range. In: Proceedings of SPIE - The International Society for Optical Engineering. SPIE Sensors + Imaging 2022, 2022-09-05 - 2022-09-07, Berlin, Deutschland. doi: 10.1117/12.2636087. ISSN 0277-786X.

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Abstract

The accurate quantification of scattered laser radiation is crucial for outdoor applications of high-power lasers. In addition to the hazard due to intrabeam viewing, specular and diffuse reflections from irradiated targets can potentially harm the human eye and skin. Measurement techniques for the detection of scattered laser radiation have been developed in the way that they provide quantitative information for advanced analyses as well as proofs and further improvements of laser safety calculations. The detection system has to be calibrated, characterized and validated in order to obtain reliable results. A compact and wavelength-specific detection system is presented, which relies on the technical specifications (i.e. entrance aperture and angular field) according to the national German policies. The mobile detection system is validated at the DLR laser test range in Lampoldshausen (Germany). Field measurements are performed by irradiating metallic targets with high-power laser radiation at 1030 nm and simultaneously measuring the scattered laser radiation with the calibrated detection system. The field of view of the detection system is oriented to the target by using an alignment laser integrated into the detection system. Target samples with different surface roughness are examined in the experiments to analyze diffusely and specularly scattered laser radiation. The dependence of the scattering angle and the distance from the metallic targets to the detection system are investigated. Analytical estimates for the scattered laser radiation are given and the results are compared to threshold limits of laser safety standards.

Item URL in elib:https://elib.dlr.de/189250/
Document Type:Conference or Workshop Item (Speech)
Title:Field validation of a mobile detection system for laser scattering measurements in the NIR range
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Peckhaus, AndreasUNSPECIFIEDhttps://orcid.org/0000-0003-2597-4293UNSPECIFIED
Elsässer, FabianUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hall, ThomasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Duschek, FrankUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:2022
Journal or Publication Title:Proceedings of SPIE - The International Society for Optical Engineering
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI:10.1117/12.2636087
ISSN:0277-786X
Status:Published
Keywords:High-power laser, IR radiation, Target scattering, Optical sensor
Event Title:SPIE Sensors + Imaging 2022
Event Location:Berlin, Deutschland
Event Type:international Conference
Event Start Date:5 September 2022
Event End Date:7 September 2022
Organizer:SPIE
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L DT - Defense Technology
DLR - Research theme (Project):L - Effect
Location: Lampoldshausen
Institutes and Institutions:Institute of Technical Physics > Atmospheric Propagation and Effect
Deposited By: Peckhaus, Andreas
Deposited On:10 Nov 2022 15:44
Last Modified:24 Apr 2024 20:50

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