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Proceedings Paper

Development of Solar-C_EUVST structural design
Author(s): Yoshinori Suematsu; Toshifumi Shimizu; Hirohisa Hara; Yukio Katsukawa; Tomoko Kawate; Kiyoshi Ichimoto; Shinsuke Imada
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Paper Abstract

The Solar-C_EUVST is a mission designed to provide high-quality solar spectroscopic data covering a wide temperature range of the chromosphere to flaring corona. To fulfill a high throughput requirement, the instrument consists of only two optical components; a 28-cm primary mirror and a segmented toroidal grating which have high reflective coatings in EUV-UV range. We present a mission payload structural design which accommodates long focal length optical components and a launcher condition/launch environment (JAXA Epsilon). We also present a mechanical design of primary mirror assembly which enables slit-scan observations, an image stabilizing tip-tilt control, and a focus adjustment on orbit, together with an optomechanical design of the primary mirror and its supporting system which gives optically tolerant wavefront error against a large temperature increase due to an absorption of visible and IR lights.

Paper Details

Date Published: 9 September 2019
PDF: 6 pages
Proc. SPIE 11118, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXI, 111181O (9 September 2019);
Show Author Affiliations
Yoshinori Suematsu, National Astronomical Observatory of Japan (Japan)
Toshifumi Shimizu, Institute of Space and Astronautical Science (Japan)
Hirohisa Hara, National Astronomical Observatory of Japan (Japan)
Yukio Katsukawa, National Astronomical Observatory of Japan (Japan)
Tomoko Kawate, Institute of Space and Astronautical Science (Japan)
Kiyoshi Ichimoto, Kyoto Univ. (Japan)
Shinsuke Imada, Nagoya Univ. (Japan)


Published in SPIE Proceedings Vol. 11118:
UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXI
Oswald H. Siegmund, Editor(s)

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