The current status of the reflector production for ASTRO-H/HXT

Akihiro Furuzawa, Takuya Miyazawa, Kanou Yasufumi, Kenji Matsuda, Michito Sakai, Yosuke Ishida, Shinji Hara, Koudai Yamane, Nobuyuki Yamane, Yusuke Miyata, Karin Sakanobe, Hiroyoshi Kato, Yukie Yajima, Tsuyoshi Watanabe, Yoshito Haba, Yuzuru Tawara, Hideyo Kunieda, Koujun Yamashita, Naoki Ishida, Akio SuzukiNobuhiro Ohtsu, Manabu Ishida, Yoshitomo Maeda, Hideyuki Mori, Keisuke Tamura, Hisamitsu Awaki, Yoshiharu Namba, Takashi Okajima

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

5 Citations (Scopus)


Japan's 6th X-ray satellite mission ASTRO-H, which is planed to be launched in the fiscal year 2013, will carry two hard X-ray telescopes (HXT) using depth-graded multilayer reflectors which provide us the capability of hard X-ray imaging observation up to 80 keV. ASTRO-H/HXT is the light-weight hard X-ray telescope using Pt/C depth-graded multilayer and high-throughput thin-foil optics. The basic technology for fabricating ASTROH/HXT has been established through the balloon borne experiments, InFOCμS and SUMIT mission. The HXT consists of about 1300 foil reflectors of which a size of the 200 mm mirror length and the diameter range of 120-450 mm which is much larger that those for the balloon borne experiments. To clear the requirements of the angular resolution and the effective photon collecting area for ASTRO-H/HXT, we should produce twice the total number of reflectors and select them. Therefore we need to produce more than 5000 foil reflectors for the two flight telescopes. The installation of the production line and optical evaluation system dedicated to the ASTRO-H/HXT has been almost done. We are testing and improving the production line through productions of several sizes of reflectors. The mass production of the reflectors for the flight model is scheduled to start from July 2010.

Original languageEnglish
Title of host publicationSpace Telescopes and Instrumentation 2010
Subtitle of host publicationUltraviolet to Gamma Ray
Publication statusPublished - 2010
Externally publishedYes
EventSpace Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray - San Diego, CA, United States
Duration: 28-06-201002-07-2010

Publication series

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


OtherSpace Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray
Country/TerritoryUnited States
CitySan Diego, CA

All Science Journal Classification (ASJC) codes

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


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