Soft x-ray imager (SXI) onboard ASTRO-H

  title={Soft x-ray imager (SXI) onboard ASTRO-H},
  author={Hiroshi Tsunemi and Kiyoshi Hayashida and Takeshi Go Tsuru and Tadayasu Dotani and Hiroshi Nakajima and Naohisa Anabuki and Ryo Nagino and Takaaki Tanaka and Hiroyuki Uchida and Masanobu Ozaki and Chikara Natsukari and Hiroshi Tomida and Shutaro Ueda and Masachika Iwai and Masayoshi Nobukawa and Junko S. Hiraga and Takayoshi Kohmura and Hiroshi Murakami and Koji Mori and M. Higa M. Yamauchi and Isamu Hatsukade and Yusuke Nishioka and Aya Bamba and Kumiko K. Nobukawa and John P. Doty},
  booktitle={Astronomical Telescopes + Instrumentation},
We report here the performance of the SXI on ASTRO-H that was started its operation from March,02 2016. The SXI consists of 4 CCDs that cover 38' X 38' sky region. They are P-channel back-illumination type CCD with a depletion layer of 200 μm. Charge injection (CI) method is applied from its beginning of the mission. Two single stage sterling coolers are equipped with the SXI while one of them has enough power to cool the CCD to -110°C. There are two issues in the SXI performance: one is a… 
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