論文

2020年6月

Cooling system for the Resolve onboard XRISM

Cryogenics
  • Yuichiro Ezoe
  • ,
  • Yoshitaka Ishisaki
  • ,
  • Ryuichi Fujimoto
  • ,
  • Yoh Takei
  • ,
  • Takafumi Horiuchi
  • ,
  • Masahiro Tsujimoto
  • ,
  • Kumi Ishikawa
  • ,
  • Susumu Yasuda
  • ,
  • Keiichi Yanagase
  • ,
  • Yasuko Shibano
  • ,
  • Kosuke Sato
  • ,
  • Shunji, Kitamoto
  • ,
  • Seiji Yoshida
  • ,
  • Keiichi Kanao
  • ,
  • Shoji Tsunematsu
  • ,
  • Kiyomi Otsuka
  • ,
  • Syou Mizunuma
  • ,
  • Masahito Isshiki
  • ,
  • Richard L. Kelley
  • ,
  • Calorine A. Kilbourne
  • ,
  • Frederick S. Porter
  • ,
  • Michael J. DiPirro
  • ,
  • Peter Shirron

108
記述言語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.cryogenics.2019.103016

The X-ray Imaging and Spectroscopy Mission (XRISM) is a recovery mission of ASTRO-H (Hitomi) launched in 2016. The Resolve instrument on the XRISM is an 6 × 6 array of silicon-thermistor microcalorimeters cooled down to 50 mK combined with a 5.6 m focal length X-ray telescope. Its design inherits that of the Soft X-ray Spectrometer (SXS) onboard ASTRO-H that demonstrated high resolution spectroscopy of the X-ray microcalorimeters by observing astronomical objects and providing superb resolution spectra. The cooling chain of the Resolve consists of a 3-stage adiabatic demagnetization refrigerator (ADR), a Joule-Thomson cooler, ~30 L superfluid helium, four Stirling coolers and a vacuum vessel or a dewar. Design of the Resolve cooling system is basically the same as that in the SXS but several changes are adopted based on lessons learned. This paper describes mainly the cooling system from room temperature to about 1 K providing the ADR heat sink. Major changes include an aperture baffle for micrometeoroid and orbital debris protection and optical light reduction, an eddy current damper to slow a gate valve opening, a new vibration isolation system with launch-locks.

リンク情報
DOI
https://doi.org/10.1016/j.cryogenics.2019.103016
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85083335118&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85083335118&origin=inward
ID情報
  • DOI : 10.1016/j.cryogenics.2019.103016
  • ISSN : 0011-2275
  • SCOPUS ID : 85083335118

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