Nagoya University
Nagoya University
Nagoya University
Earth Observation Research Center, Space Technology Directorate I, Japan Aerospace Exploration Agency (JAXA)(EORC)
Earth Observation Research Center, Space Technology Directorate I, Japan Aerospace Exploration Agency (JAXA)(EORC)
Earth Observation Research Center, Space Technology Directorate I, Japan Aerospace Exploration Agency (JAXA)(EORC)
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)
The University of Tokyo
出版者
宇宙航空研究開発機構(JAXA)
出版者（英）
Japan Aerospace Exploration Agency (JAXA)
雑誌名
宇宙航空研究開発機構特別資料
雑誌名(英)
JAXA Special Publication: Proceedings of the SPICA Science Conference from Exoplanets to Distant Galaxies: SPICA's New Window on the Cool Universe
巻
JAXA-SP-17-010E
ページ
399 - 401
発行年
2018-03-09
会議概要（会議名, 開催地, 会期, 主催者等）（英）
SPICA Science Conference from Exoplanets to Distant Galaxies: SPICA's New Window on the Cool Universe (June 18-21, 2013. Ito Hall, the University of Tokyo), Bunkyou-ku, Tokyo, Japan
抄録（英）
For optical testing of the SPICA telescope, we require sub-aperture stitching interferometry, because an accurate autocollimating flat mirror (ACF) with a size comparable to the telescope (3.2 m) is hardly available. Therefore we use small ACFs which rotate with respect to the optical axis of the telescope to cover the full pupil of the telescope. We verified the feasibility of the sub-aperture stitching interferometry by performing real optical measurement. At cryogenic temperatures, in particular, ACFs can be deformed due to thermal contraction. Since surface figure errors of ACFs can make errors in the sub-aperture stitching result, we propose a new method to mitigate the effects of the ACF errors. We evaluated the feasibility of this method by performing an experimental study utilizing the 800-mm telescope and a 300-mm ACF with a designed large deformation. As a result, we find that this method is applicable for the optical test of the telescope, although it needs to be further developed.
内容記述
形態: カラー図版あり
内容記述（英）
Physical characteristics: Original contains color illustrations
An Experimental Study of Stitching Interferometry for the SPICA Telescope
AA1730027088.pdf
(2.15MB)
