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Proceedings Paper

Cooling system for the soft x-ray spectrometer (SXS) onboard ASTRO-H
Author(s): Ryuichi Fujimoto; Kazuhisa Mitsuda; Noriko Yamasaki; Yoh Takei; Masahiro Tsujimoto; Hiroyuki Sugita; Yoichi Sato; Keisuke Shinozaki; Atsushi Okamoto; Takaya Ohashi; Yoshitaka Ishisaki; Yuichiro Ezoe; Kumi Ishikawa; Masahide Murakami; Shunji Kitamoto; Hiroshi Murakami; Toru Tamagawa; Madoka Kawaharada; Hiroya Yamaguchi; Kosuke Sato; Akio Hoshino; Kenichi Kanao; Seiji Yoshida; Mikio Miyaoka; Michael DiPirro; Peter Shirron; Gary Sneiderman; Richard L. Kelley; F. Scott Porter; Caroline A. Kilbourne; John Crow; Andrea Mattern; Ali Kashani; Dan McCammon
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Paper Abstract

The Soft X-ray Spectrometer (SXS) is a cryogenic high resolution X-ray spectrometer onboard the X-ray astronomy satellite ASTRO-H. The detector array is cooled down to 50 mK using a 3-stage adiabatic demagnetization refrigerator (ADR). The cooling chain from room temperature to the ADR heat-sink is composed of superfluid liquid He, a 4He Joule-Thomson cryocooler, and 2-stage Stirling cryocoolers. It is designed to keep 30 L of liquid He for more than 3 years in the nominal case. It is also designed with redundant subsystems throughout from room temperature to the ADR heat-sink, to alleviate failure of a single cryocooler or loss of liquid He.

Paper Details

Date Published: 30 July 2010
PDF: 7 pages
Proc. SPIE 7732, Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray, 77323H (30 July 2010); doi: 10.1117/12.856909
Show Author Affiliations
Ryuichi Fujimoto, Kanazawa Univ. (Japan)
Kazuhisa Mitsuda, Japan Aerospace Exploration Agency (Japan)
Noriko Yamasaki, Japan Aerospace Exploration Agency (Japan)
Yoh Takei, Japan Aerospace Exploration Agency (Japan)
Masahiro Tsujimoto, Japan Aerospace Exploration Agency (Japan)
Hiroyuki Sugita, Japan Aerospace Exploration Agency (Japan)
Yoichi Sato, Japan Aerospace Exploration Agency (Japan)
Keisuke Shinozaki, Japan Aerospace Exploration Agency (Japan)
Atsushi Okamoto, Japan Aerospace Exploration Agency (Japan)
Takaya Ohashi, Tokyo Metropolitan Univ. (Japan)
Yoshitaka Ishisaki, Tokyo Metropolitan Univ. (Japan)
Yuichiro Ezoe, Tokyo Metropolitan Univ. (Japan)
Kumi Ishikawa, Tokyo Metropolitan Univ. (Japan)
Masahide Murakami, Univ. of Tsukuba (Japan)
Shunji Kitamoto, Rikkyo Univ. (Japan)
Hiroshi Murakami, Rikkyo Univ. (Japan)
Toru Tamagawa, RIKEN (Japan)
Madoka Kawaharada, RIKEN (Japan)
Hiroya Yamaguchi, RIKEN (Japan)
Kosuke Sato, Kanazawa Univ. (Japan)
Akio Hoshino, Kanazawa Univ. (Japan)
Kenichi Kanao, Sumitomo Heavy Industries, Ltd. (Japan)
Seiji Yoshida, Sumitomo Heavy Industries, Ltd. (Japan)
Mikio Miyaoka, Sumitomo Heavy Industries, Ltd. (Japan)
Michael DiPirro, NASA Goddard Space Flight Ctr. (United States)
Peter Shirron, NASA Goddard Space Flight Ctr. (United States)
Gary Sneiderman, NASA Goddard Space Flight Ctr. (United States)
Richard L. Kelley, NASA Goddard Space Flight Ctr. (United States)
F. Scott Porter, NASA Goddard Space Flight Ctr. (United States)
Caroline A. Kilbourne, NASA Goddard Space Flight Ctr. (United States)
John Crow, NASA Goddard Space Flight Ctr. (United States)
Andrea Mattern, NASA Goddard Space Flight Ctr. (United States)
Ali Kashani, NASA Ames Research Ctr. (United States)
Atlas Scientific (United States)
Dan McCammon, Univ. of Wisconsin, Madison (United States)


Published in SPIE Proceedings Vol. 7732:
Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray
Monique Arnaud; Stephen S. Murray; Tadayuki Takahashi, Editor(s)

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