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Proceedings Paper

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

The Hard X-ray Imager (HXI) is one of 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, the instrument fully covers the energy range of photons collected with the hard X-ray telescope up to 80 keV with a high quantum efficiency. High spatial resolution of 250 μm and an energy resolution of 1-2 keV (FWHM) are both achieved with 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 high background reduction 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: 29 July 2010
PDF: 13 pages
Proc. SPIE 7732, Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray, 773215 (29 July 2010); doi: 10.1117/12.857933
Show Author Affiliations
Motohide Kokubun, Japan Aerospace Exploration Agency (Japan)
Kazuhiro Nakazawa, The Univ. of Tokyo (Japan)
Teruaki Enoto, Kavli Institute for Particle Astrophysics and Cosmology, Stanford Univ. (United States)
Yasushi Fukazawa, Hiroshima Univ. (Japan)
Kirk Gilmore, Kavli Institute for Particle Astrophysics and Cosmology, Stanford Univ. (United States)
Jun Kataoka, Waseda Univ. (Japan)
Madoka Kawaharada, Japan Aerospace Exploration Agency (Japan)
Philippe Laurent, IRFU, Service d'Astrophysique, CEA Saclay (France)
Francois Lebrun, IRFU, Service d'Astrophysique, CEA Saclay (France)
Olivier Limousin, IRFU, Service d'Astrophysique, CEA Saclay (France)
Kazuo Makishima, The Univ. of Tokyo (Japan)
Tsunefumi Mizuno, Hiroshima Univ. (Japan)
Kunishiro Mori, Japan Aerospace Exploration Agency (Japan)
Takeshi Nakamori, Waseda Univ. (Japan)
Masanori Ohno, Japan Aerospace Exploration Agency (Japan)
Masayuki Ohta, Japan Aerospace Exploration Agency (Japan)
Goro Sato, Japan Aerospace Exploration Agency (Japan)
Hiroyasu Tajima, Kavli Institute for Particle Astrophysics and Cosmology, Stanford Univ. (United States)
Hiromitsu Takahashi, Hiroshima Univ. (Japan)
Tadayuki Takahashi, Japan Aerospace Exploration Agency (Japan)
Takaaki Tanaka, Kavli Institute for Particle Astrophysics and Cosmology, Stanford Univ. (United States)
Yukikatsu Terada, Saitama Univ. (Japan)
Hideki Uchiyama, The Univ. of Tokyo (Japan)
Yasunobu Uchiyama, Kavli Institute for Particle Astrophysics and Cosmology, Stanford Univ. (United States)
Shin Watanabe, Japan Aerospace Exploration Agency (Japan)
Yoichi Yatsu, Tokyo Institute of Technology (Japan)
Kazutaka Yamaoka, Aoyama Gakuin Univ. (Japan)


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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