Performance of the ASTRO-E hard X-ray detector

M. Tashiro, T. Kamae, K. Makishima, T. Takahashi, T. Murakami, Y. Fukazawa, M. Kokubun, K. Nakazawa, M. Nomachi, A. Yoshida, Y. Ezoe, N. Isobe, N. Iyomoto, Jun Kataoka, J. Kotoku, M. Kouda, S. Kubo, A. Kubota, Y. Matsumoto, T. MizunoG. M. Madejski, Y. Okada, N. Ota, H. Ozawa, G. Sato, M. Sugiho, M. Sugizaki, I. Takahashi, H. Takahashi, T. Tamura, C. Tanihata, Y. Terada, Y. Uchiyama, S. Watanabe, K. Yamaoka, D. Yonetoku

Research output: Contribution to journalArticle

25 Citations (Scopus)


This paper summarizes the design and performance of the hard X-ray detector constructed for the ASTRO-E satellite. The detector utilizes the GSO/BGO well-type phoswich counters in a compound-eye configuration to achieve an extremely low background level of a few × 10-5counts s-1 cm-2keV-1 [1]. The GSO scintillators installed in the BGO active shield wells are sensitive to 30-600 kev photons, while the 2-mm-thick silicon PIN diodes, placed in front of each GSO crystal, cover the 10-60 kev energy band with a spectral resolution of ∼3.5-keV full-width at half-maximum. The design goals, of both low background and high energy resolution, in the hard X-ray bands were verified through the preflight calibration experiments.

Original languageEnglish
Pages (from-to)1893-1897
Number of pages5
JournalIEEE Transactions on Nuclear Science
Volume49 I
Issue number4
Publication statusPublished - 2002 Aug
Externally publishedYes



  • Background
  • Hard X-ray detector
  • Sensitivity
  • Spectral response

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Nuclear Energy and Engineering

Cite this

Tashiro, M., Kamae, T., Makishima, K., Takahashi, T., Murakami, T., Fukazawa, Y., Kokubun, M., Nakazawa, K., Nomachi, M., Yoshida, A., Ezoe, Y., Isobe, N., Iyomoto, N., Kataoka, J., Kotoku, J., Kouda, M., Kubo, S., Kubota, A., Matsumoto, Y., ... Yonetoku, D. (2002). Performance of the ASTRO-E hard X-ray detector. IEEE Transactions on Nuclear Science, 49 I(4), 1893-1897.