The Hard X-ray Imager (HXI) for the ASTRO-H Mission

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

doi:10.1117/12.925648

17 September 2012 The Hard X-ray Imager (HXI) for the ASTRO-H mission

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

Author Affiliations +

Proceedings Volume 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray; 844325 (2012) https://doi.org/10.1117/12.925648
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

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.

Citation Download Citation

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, and Takayuki Yuasa "The Hard X-ray Imager (HXI) for the ASTRO-H mission", Proc. SPIE 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, 844325 (17 September 2012); https://doi.org/10.1117/12.925648

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