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Proceedings Paper

Hard X-ray imager (HXI) for the NeXT mission
Author(s): Motohide Kokubun; Kazuhiro Nakazawa; Shin Watanabe; Yasushi Fukazawa; Jun Kataoka; Hideaki Katagiri; Tsunefumi Mizuno; Kazuo Makishima; Masanori Ohno; Goro Sato; Rie Sato; Hiroyasu Tajima; Tadayuki Takahashi; Toru Tamagawa; Takaaki Tanaka; Makoto Tashiro; Hiromitsu Takahashi; Yukikatsu Terada; Yasunobu Uchiyama; Yuji Urata; Kazutaka Yamaoka; Shin'ichiro Takeda; Tetsuichi Kishishita; Masayoshi Ushio; Jun'ichiro Katsuta; Shin'nosuke Ishikawa; Hirokazu Odaka; Hiroyuki Aono; Souichiro Sugimoto; Yuu Koseki; Takao Kitaguchi; Teruaki Enoto; Shin'ya Yamada; Takayuki Yuasa; Tsuyoshi Ueda; Yuichi Uehara; Sho Okuyama; Hajimu Yasuda; Sho Nishino; Yudai Umeki; Katsuhiro Hayashi; Masayuki Matsuoka; Yuki Ikejiri; Akira Endo; Yuichi Yaji; Natsuki Kodaka; Wataru Iwakiri; Tomomi Kouzu; Takako Sugasawara; Atsushi Harayama; Satoshi Nakahira
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Paper Abstract

The Hard X-ray Imager (HXI) is one of three focal plane detectors on board the NeXT (New exploration X-ray Telescope) mission, which is scheduled to be launched in 2013. By use of the hybrid structure composed of double-sided silicon strip detectors and a cadmium telluride strip detector, it 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 resolutions of 400 micron pitch and energy resolutions of 1-2 keV (FWMH) are at the same time achieved with low noise front-end ASICs. In addition, thick BGO active shields compactly surrounding the main detection part, as a heritage of the successful performance of the Hard X-ray Detector (HXD) on board Suzaku satellite, enable to achive an extremely high background reduction for the cosmic-ray particle background and in-orbit activation. The current status of hardware development including the design requirement, expected performance, and technical readinesses of key technologies are summarized.

Paper Details

Date Published: 15 July 2008
PDF: 10 pages
Proc. SPIE 7011, Space Telescopes and Instrumentation 2008: Ultraviolet to Gamma Ray, 70110R (15 July 2008); doi: 10.1117/12.788290
Show Author Affiliations
Motohide Kokubun, ISAS/JAXA (Japan)
Kazuhiro Nakazawa, Univ. of Tokyo (Japan)
Shin Watanabe, ISAS/JAXA (Japan)
Yasushi Fukazawa, Hiroshima Univ. (Japan)
Jun Kataoka, Tokyo Institute of Technology (Japan)
Hideaki Katagiri, Hiroshima Univ. (Japan)
Tsunefumi Mizuno, Hiroshima Univ. (Japan)
Kazuo Makishima, Univ. of Tokyo (Japan)
Cosmic Radiation Lab., RIKEN (Japan)
Masanori Ohno, ISAS/JAXA (Japan)
Goro Sato, ISAS/JAXA (Japan)
Rie Sato, ISAS/JAXA (Japan)
Hiroyasu Tajima, Stanford Linear Accelerator Ctr. (United States)
Tadayuki Takahashi, ISAS/JAXA (Japan)
Toru Tamagawa, Cosmic Radiation Lab., RIKEN (Japan)
Takaaki Tanaka, Stanford Linear Accelerator Ctr. (United States)
Makoto Tashiro, Saitama Univ. (Japan)
Hiromitsu Takahashi, Hiroshima Univ. (Japan)
Yukikatsu Terada, Saitama Univ. (Japan)
Yasunobu Uchiyama, ISAS/JAXA (Japan)
Yuji Urata, Saitama Univ. (Japan)
Kazutaka Yamaoka, Aoyama Gakuin Univ. (Japan)
Shin'ichiro Takeda, ISAS/JAXA (Japan)
Univ. of Tokyo (Japan)
Tetsuichi Kishishita, ISAS/JAXA (Japan)
Univ. of Tokyo (Japan)
Masayoshi Ushio, ISAS/JAXA (Japan)
Univ. of Tokyo (Japan)
Jun'ichiro Katsuta, ISAS/JAXA (Japan)
Univ. of Tokyo (Japan)
Shin'nosuke Ishikawa, ISAS/JAXA (Japan)
Univ. of Tokyo (Japan)
Hirokazu Odaka, ISAS/JAXA (Japan)
Univ. of Tokyo (Japan)
Hiroyuki Aono, ISAS/JAXA (Japan)
Univ. of Tokyo (Japan)
Souichiro Sugimoto, ISAS/JAXA (Japan)
Univ. of Tokyo (Japan)
Yuu Koseki, ISAS/JAXA (Japan)
Takao Kitaguchi, Univ. of Tokyo (Japan)
Teruaki Enoto, Univ. of Tokyo (Japan)
Shin'ya Yamada, Univ. of Tokyo (Japan)
Takayuki Yuasa, Univ. of Tokyo (Japan)
Tsuyoshi Ueda, Univ. of Tokyo (Japan)
Yuichi Uehara, Univ. of Tokyo (Japan)
Sho Okuyama, Univ. of Tokyo (Japan)
Hajimu Yasuda, Hiroshima Univ. (Japan)
Sho Nishino, Hiroshima Univ. (Japan)
Yudai Umeki, Hiroshima Univ. (Japan)
Katsuhiro Hayashi, Hiroshima Univ. (Japan)
Masayuki Matsuoka, Hiroshima Univ. (Japan)
Yuki Ikejiri, Hiroshima Univ. (Japan)
Akira Endo, Saitama Univ. (Japan)
Yuichi Yaji, Saitama Univ. (Japan)
Natsuki Kodaka, Saitama Univ. (Japan)
Wataru Iwakiri, Saitama Univ. (Japan)
Tomomi Kouzu, Saitama Univ. (Japan)
Takako Sugasawara, Saitama Univ. (Japan)
Atsushi Harayama, Saitama Univ. (Japan)
Satoshi Nakahira, Aoyama Gakuin Univ. (Japan)


Published in SPIE Proceedings Vol. 7011:
Space Telescopes and Instrumentation 2008: Ultraviolet to Gamma Ray
Martin J. L. Turner; Kathryn A. Flanagan, Editor(s)

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