| タイトル | Metrology system for the Terrestrial Planet Finder Coronagraph |
| 著者（英） | Zhao, Feng; Peters, Robert D.; Ho, Tim; Holmes, Buck; Marchen, Luis; Shaklin, Stuart |
| 発行日 | 2004-08-02 |
| 言語 | eng |
| 内容記述 | The Terrestrial Planet Finder (TPF) employs an aggressive coronagraph designed to obtain better than 1e-10 contrast inside the third Airy ring. Minute changes in low-order aberration content scatter significant light at this position. One implication is the requirement to control low-order aberrations induced by motion of the secondary mirror relative to the primary mirror; sub-nanometer relative positional stability is required. We propose a 6-beam laser truss to monitor the relative positions of the two mirrors. The truss is based on laser metrology developed for the Space Interferometry Mission. |
| NASA分類 | Lunar and Planetary Science and Exploration |
| 権利 | Copyright |
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