Development of a microcalorimeter array for the Diffuse Intergalactic Oxygen Surveyor (DIOS) mission

Yoshitaka Ishisaki*, Takaya Ohashi, Tai Oshima, Umeyo Morita, Keisuke Shinozaki, Kosuke Sato, Kazuhisa Mitsuda, Noriko Y. Yamasaki, Ryuichi Fujimoto, Yoh Takei, Hirotaka Sato, Noriyuki Takahashi, Takayuki Homma, Tetsuya Osaka

*この研究の対応する著者

研究成果: Conference article査読

12 被引用数 (Scopus)

抄録

We are developing a superconducting transition-edge sensor (TES) microcalorimeter array for the Diffuse Intergalactic Oxygen Surveyor (DIOS) mission. DIOS is a relatively small Japanese X-ray mission which will study large-scale distribution of the warm-hot intergalactic medium (WHIM) using OVII and OVIII emission lines. The satellite weighs about 400 kg equipped with a four-reflection X-ray telescope (FXT) and a TES microcalorimeter array (XSA). The design goal of the observing system is an effective area larger than 100 cm2 at the oxygen line energy, a field of view about 50 arcmin square, and an energy resolution about 2 eV in the energy range of 0.3-1 keV. The TES microcalorimeter array provides the large field of view and good energy resolution at the same time. We plan to install an array comprising 16 × 16 pixels with an overall size of 1 cm square, which is cooled with a cryogen-free cooler. Pixels are readout by multiplexing signals using a multi-input SQUID amplifier, with each input connected to a TES microcalorimeter which is AC biased with a different frequency. We report the design and present status of the XSA system development.

本文言語English
論文番号18
ページ(範囲)123-134
ページ数12
ジャーナルProceedings of SPIE - The International Society for Optical Engineering
5501
DOI
出版ステータスPublished - 2004 12 1
イベントHigh-Energy Detectors in Astronomy - Glasgow, United Kingdom
継続期間: 2004 6 222004 6 23

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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