Preflight performance of the Astro-E hard X-ray detector

C. Tanihata, J. Kataoka, T. Murakami, N. Ota, H. Ozawa, T. Takahashi, T. Tamura, Y. Uchiyama, S. Watanabe, K. Yamaoka, D. Yonetoku, Y. Ezoe, Y. Fukazawa, N. Isobe, N. Iyomoto, al et al

Research output: Contribution to journalConference articlepeer-review

23 Citations (Scopus)


The Hard X-ray Detector (HXD) is one of the three experiments of the Astro-E mission, the fifth Japanese X-ray satellite devoted to studies of high energy phenomena in the universe in the X-ray to soft gamma-ray region. Prepared for launch at the beginning of 2000 via the newly developed M-V launch vehicle of the Institute of Space and Astronautical Science, the Astro-E is to be thrown into a near-circular orbit of 550 km altitude, with an inclination of 31 degrees. The flight model has been finished assembled this year, and we carried out various tests to verify the performance. We acquired the background spectrum at sea level, and confirmed that our system is operating effectively in reducing the background level. The HXD will observe photons in the energy range of 10-600 keV, and the calculations based on the preflight calibration suggest that the HXD will have the highest sensitivity ever achieved in this energy range. We also verified that our electronic system will maintain its performance against charged particle events expected in orbit.

Original languageEnglish
Pages (from-to)645-663
Number of pages19
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1999
Externally publishedYes
EventProceedings of the 1999 EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy X - Denver, CO, USA
Duration: Jul 21 1999Jul 23 1999

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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