Schröder, Helmut and Borgmann, Sandra and Riede, Wolfgang and Wernham, Denny (2008) Investigation of Laser Induced Deposit Formation under Space Conditions. In: Proceedings ICSO 2008. Seventh International Conference on Space Optics, 2008-10-14 - 2008-10-17, Toulouse, France.
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Abstract
In this paper comprehensive investigations of laser induced deposit formation are reported. In a high vacuum chamber (p < 10-6 mbar) different space relevant materials containing epoxy, silicone and polyurethane based components were tested under space conditions. The experiments were performed with a pulsed Nd:YAG laser with peak fluences up to 2.5 J/cm² at 355 nm wavelength and 3 ns pulse width. Additional tests were performed with an UV cw laser diode at 375 nm and 10 mW mean power. The onset and growth of the deposits was monitored in-situ and online by UV induced fluorescence imaging. The influence of roughness, temperature and chemical composition of the optical surface on the deposition process was investigated. Time-of-flight secondary ion mass spectroscopy (ToF-SIMS) was used for chemical characterization of the deposits. Furthermore the influence of deposits on the UV-transmission of the optics was estimated.
Item URL in elib: | https://elib.dlr.de/56444/ | ||||||||||||||||||||
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Document Type: | Conference or Workshop Item (Paper) | ||||||||||||||||||||
Title: | Investigation of Laser Induced Deposit Formation under Space Conditions | ||||||||||||||||||||
Authors: |
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Date: | 2008 | ||||||||||||||||||||
Journal or Publication Title: | Proceedings ICSO 2008 | ||||||||||||||||||||
Refereed publication: | No | ||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||
Editors: |
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Status: | Published | ||||||||||||||||||||
Keywords: | Laser induced contamination, fluorescence | ||||||||||||||||||||
Event Title: | Seventh International Conference on Space Optics | ||||||||||||||||||||
Event Location: | Toulouse, France | ||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||
Event Start Date: | 14 October 2008 | ||||||||||||||||||||
Event End Date: | 17 October 2008 | ||||||||||||||||||||
Organizer: | CNES ESA | ||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||
HGF - Program: | Aeronautics | ||||||||||||||||||||
HGF - Program Themes: | Aircraft Research (old) | ||||||||||||||||||||
DLR - Research area: | Aeronautics | ||||||||||||||||||||
DLR - Program: | L AR - Aircraft Research | ||||||||||||||||||||
DLR - Research theme (Project): | L - Laser Research and Technology (old) | ||||||||||||||||||||
Location: | Stuttgart | ||||||||||||||||||||
Institutes and Institutions: | Institute of Technical Physics | ||||||||||||||||||||
Deposited By: | Schröder, Dr.rer.nat. Helmut | ||||||||||||||||||||
Deposited On: | 08 Dec 2008 | ||||||||||||||||||||
Last Modified: | 24 Apr 2024 19:20 |
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