In-Orbit Performance of the Hard X-ray Detector on board Suzaku

• Main Authors: 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, Takahashi, H, Hong, S, Kawaharada, M, Kawano, N, Mitani, T, Murashima, M, Suzuki, M, Abe, K, Miyawaki, R, Ohno, M, Tanaka, T, Yanagida, T, Itoh, T, Ohnuki, K, Tamura, K, Endo, Y, Hirakuri, S, Hiruta, T, Kitaguchi, T, Kishishita, T, Sugita, S, Takeda, S, Enoto, T, Hirasawa, A, Katsuta, J, Matsumura, S, Onda, K, Sato, M, Ushio, M, Ishikawa, S, Murase, K, Odaka, H, Yaji, Y, Yamada, S, Yamasaki, T, Yuasa, T
• Format: Journal Article
• Language: English
• Published: 07-11-2006
• Subjects: Physics - Astrophysics of Galaxies; Physics - Cosmology and Nongalactic Astrophysics; Physics - Earth and Planetary Astrophysics; Physics - High Energy Astrophysical Phenomena; Physics - Instrumentation and Methods for Astrophysics; Physics - Solar and Stellar Astrophysics
• DOI: 10.48550/arxiv.astro-ph/0611233

Publ.Astron.Soc.Jap.59:53-76,2007 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.