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Journal of Astronomical Telescopes, Instruments, and Systems

Preliminary structural design and key technology demonstration of cryogenic assembly in the next-generation infrared space telescope SPICA
Author(s): Tadahito Mizutani; Toshihiko Yamawaki; Keiji Komatsu; Ken Goto; Shinsuke Takeuchi; Keisuke Shinozaki; Hideo Matsuhara; Takao Nakagawa
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Paper 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.

Paper Details

Date Published: 15 April 2015
PDF: 10 pages
J. Astron. Telesc. Instrum. Syst. 1(2) 027001 doi: 10.1117/1.JATIS.1.2.027001
Published in: Journal of Astronomical Telescopes, Instruments, and Systems Volume 1, Issue 2
Show Author Affiliations
Tadahito Mizutani, Japan Aerospace Exploration Agency (Japan)
Toshihiko Yamawaki, Japan Aerospace Exploration Agency (Japan)
Keiji Komatsu, Japan Aerospace Exploration Agency (Japan)
Ken Goto, Japan Aerospace Exploration Agency (Japan)
Shinsuke Takeuchi, Japan Aerospace Exploration Agency (Japan)
Keisuke Shinozaki, Japan Aerospace Exploration Agency (Japan)
Hideo Matsuhara, Institute of Space and Astronautical Science (Japan)
Takao Nakagawa, Institute of Space and Astronautical Science (Japan)

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