Performance of ASTRO-H hard X-ray telescope (HXT)

Hisamitsu Awaki, Hideyo Kunieda, Manabu Ishida, Hironori Matsumoto, Akihiro Furuzawa, Yoshito Haba, Takayuki Hayashi, Ryo Iizuka, Kazunori Ishibashi, Masayuki Itoh, Tatsuro Kosaka, Yoshitomo Maeda, Ikuyuki Mitsuishi, Takuya Miyazawa, Hideyuki Mori, Hosei Nagano, Yoshiharu Namba, Yasushi Ogasaka, Keiji Ogi, Takashi OkajimaSatoshi Sugita, Yoshio Suzuki, Keisuke Tamura, Yuzuru Tawara, Kentaro Uesugi, Shigeo Yamauchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

The Japanese X-ray Astronomy Satellite, Hitomi (ASTRO-H) carries hard X-ray imaging system, covering the energy band from 5 keV to 80 keV. The hard X-ray imaging system consists of two hard X-ray telescopes (HXT) and the focal plane detectors (HXI). The HXT employs tightly-nested, conically-approximated thin foil Wolter-I optics. The mirror surfaces of HXT were coated with Pt/C depth-graded multilayers. We carried out ground calibrations of HXTs at the synchrotron radiation facility SPring-8/BL20B2 Japan, and found that total effective area of two HXTs was about 350 cm2 at 30 keV, and the half power diameter of HXT was about 1.'9. After the launch of Hitomi, Hitomi observed several targets during the initial functional verification of the onboard instruments. The Hitomi software and calibration team (SCT) provided the Hitomi's data of G21.5-0.9, a pulsar wind nebula, to the hardware team for the purpose of the instrument calibration. Through the analysis of the in-flight data, we have confirmed that the X-ray performance of HXTs in orbit was consistent with that obtained by the ground calibrations.

Original languageEnglish
Title of host publicationSpace Telescopes and Instrumentation 2016
Subtitle of host publicationUltraviolet to Gamma Ray
EditorsMarshall Bautz, Tadayuki Takahashi, Jan-Willem A. den Herder
PublisherSPIE
ISBN (Electronic)9781510601895
DOIs
Publication statusPublished - 01-01-2016
EventSpace Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray - Edinburgh, United Kingdom
Duration: 26-06-201601-07-2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9905
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherSpace Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray
CountryUnited Kingdom
CityEdinburgh
Period26-06-1601-07-16

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Awaki, H., Kunieda, H., Ishida, M., Matsumoto, H., Furuzawa, A., Haba, Y., Hayashi, T., Iizuka, R., Ishibashi, K., Itoh, M., Kosaka, T., Maeda, Y., Mitsuishi, I., Miyazawa, T., Mori, H., Nagano, H., Namba, Y., Ogasaka, Y., Ogi, K., ... Yamauchi, S. (2016). Performance of ASTRO-H hard X-ray telescope (HXT). In M. Bautz, T. Takahashi, & J-W. A. den Herder (Eds.), Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray [990512] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9905). SPIE. https://doi.org/10.1117/12.2231258