Design and performance of a vacuum-UV simulator for material testing under space conditions |
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| Authors: | M. Sznajder T. Renger A. Witzke U. Geppert R. Thornagel |
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| Affiliation: | 1. DLR Institute for Space Systems, University of Bremen, Robert Hooke Str. 7, 28359 Bremen, Germany;2. DLR Institute for Space Systems, System Conditioning, Robert Hooke Str. 7, 28359 Bremen, Germany;3. Kepler Institute of Astronomy, University of Zielona Góra, 65-265 Zielona Góra, Lubuska 2, Poland;4. Physikalisch-Technische Bundesanstalt, Abbestr. 2-12, 10587 Berlin, Germany |
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| Abstract: | This paper describes the construction and performance of a VUV-simulator that has been designed to study degradation of materials under space conditions. It is part of the Complex Irradiation Facility at DLR in Bremen, Germany, that has been built for testing of material under irradiation in the complete UV-range as well as under proton and electron irradiation. Presently available UV-sources used for material tests do not allow the irradiation with wavelengths smaller than about 115 nm where common Deuterium lamps show an intensity cut-off. The VUV-simulator generates radiation by excitation of a gas-flow with an electron beam. The intensity of the radiation can be varied by manipulating the gas-flow and/or the electron beam. |
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| Keywords: | Material testing UV degradation VUV |
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