159 articles – 2004 Notices  [english version]
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SPIE Astronomical Telescopes and Instrumentation 2010, San Diego (California) : United States (2010)
Hard x-ray imager (HXI) for the ASTRO-H Mission
Motohide Kokubun, Kazuhiro Nakazawa, Teruaki Enoto, Yasushi Fukazawa, Kirk Gilmore, Jun Kataoka, Madoka Kawaharada, P. Laurent1, 2, F. Lebrun1, 2, O. Limousin2, 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
ASTRO-H Collaboration(s)

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.
1 :  APC - UMR 7164 - AstroParticule et Cosmologie
2 :  IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (ex DAPNIA)
Planète et Univers/Astrophysique/Phénomènes cosmiques de haute energie

Physique/Astrophysique/Phénomènes cosmiques de haute energie