| タイトル | Environmental Qualification of a Single-Crystal Silicon Mirror for Spaceflight Use |
| 本文（外部サイト） | http://hdl.handle.net/2060/20130013807 |
| 著者（英） | Budinoff, Jason; Bly, Vincent; Morell, Armando; Chambers, John; Rohrback. Scott; Hagopian, John |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2013-06-01 |
| 言語 | eng |
| 内容記述 | This innovation is the environmental qualification of a single-crystal silicon mirror for spaceflight use. The single-crystal silicon mirror technology is a previous innovation, but until now, a mirror of this type has not been qualified for spaceflight use. The qualification steps included mounting, gravity change measurements, vibration testing, vibration- induced change measurements, thermal cycling, and testing at the cold operational temperature of 225 K. Typical mirrors used for cold applications for spaceflight instruments include aluminum, beryllium, glasses, and glass-like ceramics. These materials show less than ideal behavior after cooldown. Single-crystal silicon has been demonstrated to have the smallest change due to temperature change, but has not been spaceflight-qualified for use. The advantage of using a silicon substrate is with temperature stability, since it is formed from a stress-free single crystal. This has been shown in previous testing. Mounting and environmental qualification have not been shown until this testing. |
| NASA分類 | Man/System Technology and Life Support |
| レポートNO | GSC-16473-1 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/237042 |
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