학술논문
In-Orbit Performance of the Hard X-Ray Detector on Board Suzaku
Document Type
Article
Author
Kokubun, Motohide; Makishima, Kazuo; Takahashi, Tadayuki; Murakami, Toshio; Tashiro, Makoto; Fukazawa, Yasushi; Kamae, Tuneyoshi; Madejski, Greg M.; Nakazawa, Kazuhiro; Yamaoka, Kazutaka; Terada, Yukikatsu; Yonetoku, Daisuke; Watanabe, Shin; Tamagawa, Toru; Mizuno, Tsunefumi; Kubota, Aya; Isobe, Naoki; Takahashi, Isao; Sato, Goro; Takahashi, Hiromitsu; Hong, Soojing; Kawaharada, Madoka; Kawano, Naomi; Mitani, Takefumi; Murashima, Mio; Suzuki, Masaya; Abe, Keiichi; Miyawaki, Ryouhei; Ohno, Masanori; Tanaka, Takaaki; Yanagida, Takayuki; Itoh, Takeshi; Ohnuki, Kousuke; Tamura, Ken-ichi; Endo, Yasuhiko; Hirakuri, Shinya; Hiruta, Tatsuro; Kitaguchi, Takao; Kishishita, Tetsuichi; Sugita, Satoshi; Takahashi, Takuya; Takeda, Shin’ichiro; Enoto, Teruaki; Hirasawa, Ayumi; Katsuta, Jun’ichiro; Matsumura, Satoshi; Onda, Kaori; Sato, Mitsuhiro; Ushio, Masayoshi; Ishikawa, Shin-nosuke; Murase, Koichi; Odaka, Hirokazu; Suzuki, Masanobu; Yaji, Yuichi; Yamada, Shinya; Yamasaki, Tomonori; Yuasa, Takayuki
Source
Publications of the Astronomical Society of Japan; January 2007, Vol. 59 Issue: 1, Number 1 Supplement 1 pS53-S76, 24p
Subject
Language
ISSN
00046264; 2053051X
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 $\sim 4 \,\mathrm{keV}$(FWHM) at 40 keV and $\sim 11\%$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.