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Proceedings Paper

The Hard X-ray Imager (HXI) for the ASTRO-H Mission
Author(s): Motohide Kokubun; Kazuhiro Nakazawa; Teruaki Enoto; Yasushi Fukazawa; Jun Kataoka; Madoka Kawaharada; Philippe Laurent; François Lebrun; Olivier Limousin; Kazuo Makishima; Tsunefumi Mizuno; Kunishiro Mori; Takeshi Nakamori; Hirokazu Odaka; Masanori Ohno; Masayuki Ohta; Goro Sato; Rie Sato; Hiroyasu Tajima; Hiromitsu Takahashi; Tadayuki Takahashi; Takaaki Tanaka; Yukikatsu Terada; Hideki Uchiyama; Yasunobu Uchiyama; Shin Watanabe; Yoichi Yatsu; Takayuki Yuasa
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Paper Abstract

The Hard X-ray Imager (HXI) is one of the four detectors on board the ASTRO-H mission (6th Japanese X-ray satellite), which is scheduled to be launched in 2014. Using the hybrid structure composed of double-sided silicon strip detectors and a cadmium telluride double-sided strip detector, both with a high spatial resolution of 250 μm. Combined with the hard X-ray telescope (HXT), it consists a hard X-ray imaging spectroscopic instrument covering the energy range from 5 to 80 keV with an effective area of <300 cm2 in total at 30 keV. An energy resolution of 1–2 keV (FWHM) and lower threshold of 5 keV are both achieved with using a low noise front-end ASICs. In addition, the thick BGO active shields surrounding the main detector package is a heritage of the successful performance of the Hard X-ray Detector on board the Suzaku satellite. This feature enables the instrument to achieve an extremely good reduction of background caused by cosmic-ray particles, cosmic X-ray background, and in-orbit radiation activation. In this paper, we present the detector concept, design, latest results of the detector development, and the current status of the hardware.

Paper Details

Date Published: 17 September 2012
PDF: 15 pages
Proc. SPIE 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, 844325 (17 September 2012); doi: 10.1117/12.925648
Show Author Affiliations
Motohide Kokubun, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
Kazuhiro Nakazawa, The Univ. of Tokyo (Japan)
Teruaki Enoto, RIKEN (Japan)
Yasushi Fukazawa, Hiroshima Univ. (Japan)
Jun Kataoka, Waseda Univ. (Japan)
Madoka Kawaharada, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
Philippe Laurent, Service d'Astophysique, IRFU-CEA Saclay (France)
François Lebrun, Service d'Astophysique, IRFU-CEA Saclay (France)
Olivier Limousin, Service d'Astophysique, IRFU-CEA Saclay (France)
Kazuo Makishima, The Univ. of Tokyo (Japan)
Tsunefumi Mizuno, Hiroshima Univ. (Japan)
Kunishiro Mori, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
Takeshi Nakamori, Research Institute for Science and Engineering, Waseda Univ. (Japan)
Hirokazu Odaka, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
Masanori Ohno, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
Masayuki Ohta, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
Goro Sato, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
Rie Sato, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
Hiroyasu Tajima, Solar-Terrestrial Environment Lab., Nagoya Univ. (Japan)
Hiromitsu Takahashi, Hiroshima Univ. (Japan)
Tadayuki Takahashi, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
Takaaki Tanaka, Kyoto Univ. (United States)
Yukikatsu Terada, Saitama Univ. (Japan)
Hideki Uchiyama, The Univ. of Tokyo (Japan)
Yasunobu Uchiyama, Kavli Institute for Astrophysics and Space Research, Stanford Univ. (United States)
Shin Watanabe, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
Yoichi Yatsu, Tokyo Institute of Technology (Japan)
Takayuki Yuasa, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)


Published in SPIE Proceedings Vol. 8443:
Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray
Tadayuki Takahashi; Stephen S. Murray; Jan-Willem A. den Herder, Editor(s)

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