In-orbit performance of the hard X-ray detector on board Suzaku

Motohide Kokubun, Kazuo Makishima, Tadayuki Takahashi, Toshio Murakami, Makoto Tashiro, Yasushi Fukazawa, Tuneyoshi Kamae, Greg M. Madejski, Kazuhiro Nakazawa, Kazutaka Yamaoka, Yukikatsu Terada, Daisuke Yonetoku, Shin Watanabe, Toru Tamagawa, Tsunefumi Mizuno, Aya Kubota, Naoki Isobe, Isao Takahashi, Goro Sato, Hiromitsu TakahashiSoojing Hong, Madoka Kawaharada, Naomi Kawano, Takefumi Mitani, Mio Murashima, Masaya Suzuki, Keiichi Abe, Ryouhei Miyawaki, Masanori Ohno, Takaaki Tanaka, Takayuki Yanagida, Takeshi Itoh, Kousuke Ohnuki, Ken Ichi Tamura, Yasuhiko Endo, Shinya Hirakuri, Tatsuro Hiruta, Takao Kitaguchi, Tetsuichi Kishishita, Satoshi Sugita, Takuya Takahashi, Shin'ichiro Takeda, Teruaki Enoto, Ayumi Hirasawa, Jun'ichiro Katsuta, Satoshi Matsumura, Kaori Onda, Mitsuhiro Sato, Masayoshi Ushio, Shin Nosuke Ishikawa, Koichi Murase, Hirokazu Odaka, Masanobu Suzuki, Yuichi Yaji, Shinya Yamada, Tomonori Yamasaki, Takayuki Yuasa

Research output: Contribution to journalArticle

241 Citations (Scopus)

Abstract

The in-orbit performance and calibration of the Hard X-ray Detector (HXD) on board the X-ray astronomy satellite Suzaku are described. Its basic performances, including a wide energy bandpass of 10-600 keV, energy resolutions of ∼ 4 keV (FWHM) at 40 keV and ∼ 11% at 511 keV, and a high background rejection efficiency, have been confirmed by extensive in-orbit calibrations. The long-term gains of PIN-Si diodes have been stable within 1% for half a year, and those of scintillators have decreased by 5-20%. The residual non-X-ray background of the HXD is the lowest among past non-imaging hard X-ray instruments in energy ranges of 15-70 and 150-500 keV. We provide accurate calibrations of energy responses, angular responses, timing accuracy of the HXD, and relative normalizations to the X-ray CCD cameras using multiple observations of the Crab Nebula.

Original languageEnglish
JournalPublications of the Astronomical Society of Japan
Volume59
Issue number1 SPEC. ISS.
Publication statusPublished - 2007

Keywords

  • Instrumentation: detectors
  • X-rays: general
  • X-rays: individual (Crab Nebula)

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Kokubun, M., Makishima, K., Takahashi, T., Murakami, T., Tashiro, M., Fukazawa, Y., Kamae, T., Madejski, G. M., Nakazawa, K., Yamaoka, K., Terada, Y., Yonetoku, D., Watanabe, S., Tamagawa, T., Mizuno, T., Kubota, A., Isobe, N., Takahashi, I., Sato, G., ... Yuasa, T. (2007). In-orbit performance of the hard X-ray detector on board Suzaku. Publications of the Astronomical Society of Japan, 59(1 SPEC. ISS.).