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Proceedings Paper

Thermal study of payload module for the next-generation infrared space telescope SPICA in risk mitigation phase
Author(s): Keisuke Shinozaki; Yoichi Sato; Kenichiro Sawada; Makiko Ando; Hiroyuki Sugita; Toshihiko Yamawaki; Tadahito Mizutani; Keiji Komatsu; Shun Okazaki; Hiroyuki Ogawa; Takao Nakagawa; Hideo Matsuhara; Makoto Takada; Akinobu Okabayashi; Shoji Tsunematsu; Katsuhiro Narasaki
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Paper Abstract

The Space Infrared Telescope for Cosmology and Astrophysics (SPICA) is a pre-project of JAXA in collaboration with ESA to be launched around 2025. The SPICA mission is to be launched into a halo orbit around the second Lagrangian point in the Sun-Earth system, which allows us to use effective radiant cooling in combination with a mechanical cooling system in order to cool a 3m large IR telescope below 6K. The use of 4K / 1K-class Joule-Thomson coolers is proposed in order to cool the telescope and provide a 4K / 1K temperature region for Focal Plane Instruments (FPIs). This paper introduces details of the thermal design study for the SPICA payload module in the Risk-Mitigation-Phase (RMP), in which the activity is focused on mitigating the mission’s highest risks. As the result of the RMP activity, most of all the goals have been fully satisfied and the thermal design of the payload module has been dramatically improved.

Paper Details

Date Published: 28 August 2014
PDF: 12 pages
Proc. SPIE 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave, 914349 (28 August 2014); doi: 10.1117/12.2056650
Show Author Affiliations
Keisuke Shinozaki, Japan Aerospace Exploration Agency (Japan)
Yoichi Sato, Japan Aerospace Exploration Agency (Japan)
Kenichiro Sawada, Japan Aerospace Exploration Agency (Japan)
Makiko Ando, Japan Aerospace Exploration Agency (Japan)
Hiroyuki Sugita, Japan Aerospace Exploration Agency (Japan)
Toshihiko Yamawaki, Japan Aerospace Exploration Agency (Japan)
Tadahito Mizutani, Japan Aerospace Exploration Agency (Japan)
Keiji Komatsu, Japan Aerospace Exploration Agency (Japan)
Shun Okazaki, Japan Aerospace Exploration Agency (Japan)
Hiroyuki Ogawa, Japan Aerospace Exploration Agency (Japan)
Takao Nakagawa, Japan Aerospace Exploration Agency (Japan)
Hideo Matsuhara, Japan Aerospace Exploration Agency (Japan)
Makoto Takada, Sumitomo Heavy Industries, Ltd. (Japan)
Akinobu Okabayashi, Sumitomo Heavy Industries, Ltd. (Japan)
Shoji Tsunematsu, Sumitomo Heavy Industries, Ltd. (Japan)
Katsuhiro Narasaki, Sumitomo Heavy Industries, Ltd. (Japan)

Published in SPIE Proceedings Vol. 9143:
Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave
Jacobus M. Oschmann Jr.; Mark Clampin; Giovanni G. Fazio; Howard A. MacEwen, Editor(s)

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