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

Tadahito Mizutani; Toshihiko Yamawaki; Keiji Komatsu; Ken Goto; Shinsuke Takeuchi; Keisuke Shinozaki; Hideo Matsuhara; Takao Nakagawa

doi:10.1117/1.JATIS.1.2.027001

15 April 2015 Preliminary structural design and key technology demonstration of cryogenic assembly in the next-generation infrared space telescope SPICA

Tadahito Mizutani, Toshihiko Yamawaki, Keiji Komatsu, Ken Goto, Shinsuke Takeuchi, Keisuke Shinozaki, Hideo Matsuhara, Takao Nakagawa

Author Affiliations +

Journal of Astronomical Telescopes, Instruments, and Systems, Vol. 1, Issue 2, 027001 (April 2015). https://doi.org/10.1117/1.JATIS.1.2.027001

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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Tadahito Mizutani, Toshihiko Yamawaki, Keiji Komatsu, Ken Goto, Shinsuke Takeuchi, Keisuke Shinozaki, Hideo Matsuhara, and Takao Nakagawa "Preliminary structural design and key technology demonstration of cryogenic assembly in the next-generation infrared space telescope SPICA," Journal of Astronomical Telescopes, Instruments, and Systems 1(2), 027001 (15 April 2015). https://doi.org/10.1117/1.JATIS.1.2.027001

Published: 15 April 2015

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