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Proceedings Paper

Inflight calibration and performance of the hard x-ray detector (HXD) onboard Suzaku
Author(s): Y. Fukazawa; M. Mizuno; H. Takahashi; N. Kawano; M. Ohno; A. Hirasawa; T. Yamasaki; K. Makishima; M. Kokubun; M. Kawaharada; M. Murashima; R. Miyawaki; T. Yanagida; T. Itoh; T. Kitaguchi; S. Hirakuri; T. Enoto; M. Sato; T. Takahashi; K. Nakazawa; S. Watanabe; T. Tanaka; K. Oonuki; K. Tamura; T. Kishishita; S. Takeda; M. Ushio; J. Katsuta; Y. Terada; T. Tamagawa; A. Kubota; M. Tashiro; Y. Endo; K. Yamaoka; T. Murakami; D. Yonetoku; T. Kamae; G. M. Madejski
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Paper Abstract

The hard X-ray detector (HXD) onboard Suzaku covers an energy range of 8-700 keV, and thus in combination with the CCD camera (XIS) gives us an opportunity of wide-band X-ray observations of celestial sources with a good sensitivity over the 0.3-700 keV range. All of 64 Si-PIN photo diodes, 16 GSO/BGO phoswich scintillators, and 20 anti-coincidence BGO scintillators in the HXD are working well since the Suzaku launch on July 2005. The rejection of background events is confirmed to be as effective as expected, and accordingly the HXD achieved the lowest background level of the previously or currently operational missions sensitive in the comparable energy range. The energy and angular responses and timing have been continuously calibrated by the data from the Crab nebula, X-ray pulsars, and other sources, and at present several % accuracy is obtained. Even though the HXD does not perform simultaneous background observations, it detected weak sources with a flux as low as ~0.5 mCrab; stars, X-ray binaries, supernova remnants, active galactic nuclei, and galaxy clusters. Extensive studies of background subtraction enables us to study weaker sources.

Paper Details

Date Published: 15 June 2006
PDF: 12 pages
Proc. SPIE 6266, Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray, 62662L (15 June 2006); doi: 10.1117/12.671214
Show Author Affiliations
Y. Fukazawa, Hirohsima Univ. (Japan)
M. Mizuno, Hirohsima Univ. (Japan)
H. Takahashi, Hirohsima Univ. (Japan)
N. Kawano, Hirohsima Univ. (Japan)
M. Ohno, Hirohsima Univ. (Japan)
A. Hirasawa, Hirohsima Univ. (Japan)
T. Yamasaki, Hirohsima Univ. (Japan)
K. Makishima, Univ. of Tokyo (Japan)
Institute of Physical and Chemical Research (Japan)
M. Kokubun, Univ. of Tokyo (Japan)
M. Kawaharada, Univ. of Tokyo (Japan)
M. Murashima, Univ. of Tokyo (Japan)
R. Miyawaki, Univ. of Tokyo (Japan)
T. Yanagida, Univ. of Tokyo (Japan)
T. Itoh, Univ. of Tokyo (Japan)
T. Kitaguchi, Univ. of Tokyo (Japan)
S. Hirakuri, Univ. of Tokyo (Japan)
T. Enoto, Univ. of Tokyo (Japan)
M. Sato, Univ. of Tokyo (Japan)
T. Takahashi, Univ. of Tokyo (Japan)
Institute of Space and Astronautical Science, JAXA (Japan)
K. Nakazawa, Institute of Space and Astronautical Science, JAXA (Japan)
S. Watanabe, Institute of Space and Astronautical Science, JAXA (Japan)
T. Tanaka, Univ. of Tokyo (Japan)
Institute of Space and Astronautical Science, JAXA (Japan)
K. Oonuki, Univ. of Tokyo (Japan)
Institute of Space and Astronautical Science, JAXA (Japan)
K. Tamura, Univ. of Tokyo (Japan)
Institute of Space and Astronautical Science, JAXA (Japan)
T. Kishishita, Univ. of Tokyo (Japan)
Institute of Space and Astronautical Science, JAXA (Japan)
S. Takeda, Univ. of Tokyo (Japan)
Institute of Space and Astronautical Science, JAXA (Japan)
M. Ushio, Univ. of Tokyo (Japan)
Institute of Space and Astronautical Science, JAXA (Japan)
J. Katsuta, Univ. of Tokyo (Japan)
Institute of Space and Astronautical Science, JAXA (Japan)
Y. Terada, Institute of Physical and Chemical Research (Japan)
T. Tamagawa, Institute of Physical and Chemical Research (Japan)
A. Kubota, Institute of Physical and Chemical Research (Japan)
M. Tashiro, Saitama Univ. (Japan)
Y. Endo, Saitama Univ. (Japan)
K. Yamaoka, Aoyama Gakuin Univ. (Japan)
T. Murakami, Kanazawa Univ. (Japan)
D. Yonetoku, Kanazawa Univ. (Japan)
T. Kamae, Stanford Linear Accelerator Ctr. (United States)
G. M. Madejski, Stanford Linear Accelerator Ctr. (United States)


Published in SPIE Proceedings Vol. 6266:
Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray
Martin J. L. Turner; Günther Hasinger, Editor(s)

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