Observatory Systems and Operations

Preliminary structural design and key technology demonstration of cryogenic assembly in the next-generation infrared space telescope SPICA

[+] Author Affiliations
Tadahito Mizutani, Toshihiko Yamawaki, Keisuke Shinozaki

Aerospace Research and Development Directorate, Japan Aerospace Exploration Agency, Tsukuba Space Center, 2-1-1 Sengen, Tsukuba-shi, Ibaraki 305-8505, Japan

Keiji Komatsu, Ken Goto, Shinsuke Takeuchi, Hideo Matsuhara, Takao Nakagawa

Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo-ku, Sagamihara-shi, Kanagawa 252-5210, Japan

J. Astron. Telesc. Instrum. Syst. 1(2), 027001 (Apr 15, 2015). doi:10.1117/1.JATIS.1.2.027001
History: Received December 10, 2014; Accepted March 19, 2015
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Abstract.  The infrared space telescope SPICA (Space Infrared Telescope for Cosmology and Astrophysics) is a next-generation astronomical project of the Japan Aerospace Exploration Agency, which features a 3 m class and 6 K cryogenically cooled space telescope. This paper outlines the current status for the preliminary structural design of the SPICA payload module. Dedicated studies were conducted for key technologies to enhance the design accuracy of the SPICA cryogenic assembly and mitigate the development risk. One of the results is described for the concept of the on-orbit truss separation mechanisms, which aim to both reduce the heat load from the main truss assembly and isolate the microvibration by changing the natural frequency of the spacecraft.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Tadahito Mizutani ; Toshihiko Yamawaki ; Keiji Komatsu ; Ken Goto ; Shinsuke Takeuchi, et al.
"Preliminary structural design and key technology demonstration of cryogenic assembly in the next-generation infrared space telescope SPICA", J. Astron. Telesc. Instrum. Syst. 1(2), 027001 (Apr 15, 2015). ; http://dx.doi.org/10.1117/1.JATIS.1.2.027001


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