Department of SiC Mirror for ASTRO-F

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概要

• 論文の詳細を見る

• The development of the light-weight silicon carbide mirrors for the ASTRO-F missionis described in this paper. These mirrors are made of a sandwich-type SiC material, consisting oflight porous core and dense CVD (chemical vapor deposition) coat of SiC. The primary mirror hasa diameter of 710 mm and weighs only 11 kg. Combined with the secondary mirror of the sametype, they form Ritchey-Chretien type telescope (F/6), which is cooled down to 5.8 K. Fabricationof the small-scale test SiC mirror has been successful which shows very little deformation of thefigure at liquid-helium temperatures. Another type of the SiC coated mirror has been tested whichhas the same size as flight model, but of which core is made of graphite. At present, polishing ofthe flight-model primary mirror is going on. Construction of the flight model telescope system willbe finished in 2001.

• 宇宙航空研究開発機構の論文

著者

• Takashi Onaka

  Department Of Astronomy University Of Tokyo

• Takashi Onaka

  Department Of Astronomy School Of Science University Of Tokyo

• Kaneda H

  The Institute Of Space And Astronautical Science

• Hidehiro Kaneda

  The Institute Of Space And Astronautical Science

• Ryoji YAMASHIRO

  Designing Department, Nikon Corporation, Mito Plant

• Ryoji Yamashiro

  Designing Department Nikon Corporation Mito Plant

関連論文

• Infrared Camera (IRC) onboard ASTRO-F (IRIS)
• A Peculiar X-Ray Transient Source, AX J1842.8-0423, Discovered with ASCA
• ASCA Observation of the Low-Luminosity Seyfert 1.5 Galaxy NGC 5033
• ASCA Observation of the Rapid Burster in Quiescence
• Water Vapor in AGB Stars
• Department of SiC Mirror for ASTRO-F

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