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Proceedings Paper

System requirements and design concept of the SPICA Mission
Author(s): Nobuhiro Takahashi; Takao Nakagawa; Hiroshi Murakami; Hideo Matsuhara; Hiroyuki Sugita; Toshihiko Yamawaki
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Paper Abstract

SPICA is a next generation infrared astronomy mission to reveal the origin of planets and galaxies. The mission is led by Japan Aerospace Exploration Agency (JAXA) in collaboration with the European Space Agency (ESA) and international consortiums in Japan, Europe, USA, and the Republic of Korea. SPICA is an "observatory" based on the heritage of AKARI's "all sky survey". ESA provides a 3-m class telescope using technology heritage of Herschel. The SPICA will achieve superior sensitivity in the mid- to far- infrared astronomy to be launched into space. SPICA has a completely new cooling system, which utilizes efficient mechanical coolers. This system enables a large, cryogenically cooled telescope in space. SPICA system concept and requirements are clear, but it is not easy to design. SPICA spacecraft consists of the Payload Module (PLM) and the Bus Module (BM). The PLM includes mechanical coolers and passive thermal shields, which enable to cool down the telescope and scientific instruments below 6K. The PLM is connected to the BM with low thermal conductivity truss structure to keep the PLM cool and the BM warm. This paper describes how to meet the system requirements to establish the feasible design of SPICA spacecraft.

Paper Details

Date Published: 5 August 2010
PDF: 8 pages
Proc. SPIE 7731, Space Telescopes and Instrumentation 2010: Optical, Infrared, and Millimeter Wave, 77310P (5 August 2010); doi: 10.1117/12.856808
Show Author Affiliations
Nobuhiro Takahashi, Japan Aerospace Exploration Agency (Japan)
Takao Nakagawa, Japan Aerospace Exploration Agency (Japan)
Hiroshi Murakami, Japan Aerospace Exploration Agency (Japan)
Hideo Matsuhara, Japan Aerospace Exploration Agency (Japan)
Hiroyuki Sugita, Japan Aerospace Exploration Agency (Japan)
Toshihiko Yamawaki, Japan Aerospace Exploration Agency (Japan)

Published in SPIE Proceedings Vol. 7731:
Space Telescopes and Instrumentation 2010: Optical, Infrared, and Millimeter Wave
Jacobus M. Oschmann Jr.; Mark C. Clampin; Howard A. MacEwen, Editor(s)

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