28 August 2014 Thermal study of payload module for the next-generation infrared space telescope SPICA in risk mitigation phase
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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.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Keisuke Shinozaki, Keisuke Shinozaki, Yoichi Sato, Yoichi Sato, Kenichiro Sawada, Kenichiro Sawada, Makiko Ando, Makiko Ando, Hiroyuki Sugita, Hiroyuki Sugita, Toshihiko Yamawaki, Toshihiko Yamawaki, Tadahito Mizutani, Tadahito Mizutani, Keiji Komatsu, Keiji Komatsu, Shun Okazaki, Shun Okazaki, Hiroyuki Ogawa, Hiroyuki Ogawa, Takao Nakagawa, Takao Nakagawa, Hideo Matsuhara, Hideo Matsuhara, Makoto Takada, Makoto Takada, Akinobu Okabayashi, Akinobu Okabayashi, Shoji Tsunematsu, Shoji Tsunematsu, Katsuhiro Narasaki, Katsuhiro Narasaki, "Thermal study of payload module for the next-generation infrared space telescope SPICA in risk mitigation phase", Proc. SPIE 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave, 914349 (28 August 2014); doi: 10.1117/12.2056650; https://doi.org/10.1117/12.2056650
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