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.
Full text not available from this repository.
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.
|Document Type:||Conference or Workshop Item (Paper)|
|Title:||Investigation of Laser Induced Deposit Formation under Space Conditions|
|Journal or Publication Title:||Proceedings ICSO 2008|
|In ISI Web of Science:||No|
|Keywords:||Laser induced contamination, fluorescence|
|Event Title:||Seventh International Conference on Space Optics|
|Event Location:||Toulouse, France|
|Event Type:||international Conference|
|Event Dates:||2008-10-14 - 2008-10-17|
|HGF - Research field:||Aeronautics, Space and Transport (old)|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Laser Research and Technology|
|Institutes and Institutions:||Institute of Technical Physics|
|Deposited By:||Dr.rer.nat. Helmut Schröder|
|Deposited On:||08 Dec 2008|
|Last Modified:||27 Apr 2009 15:32|
Repository Staff Only: item control page