Improvements of the Astro-E2 hard X-ray detector (HXD-II)

M. Kokubun, K. Abe, Y. Ezoe, Y. Fukazawa, S. Hong, H. Inoue, K. Ito, T. Itoh, T. Kamae, D. Kasama, M. Kawaharada, N. Kawano, K. Kawashima, S. Kawasoe, Y. Kobayashi, J. Kotoku, M. Kouda, A. Kubota, K. Makishima, T. MitaniH. Miyasaka, R. Miyawaki, K. Mori, M. Mori, T. Murakami, M. M. Murashima, K. Nakazawa, H. Niko, M. Nomachi, M. Ohno, Y. Okada, K. Oonuki, G. Sato, M. Suzuki, H. Takahashi, I. Takahashi, T. Takahashi, K. Tamura, T. Tanaka, M. Tashiro, Y. Terada, S. Tominaga, S. Watanabe, K. Yamaoka, T. Yanagida, D. Yonetoku

Research output: Contribution to journalArticle


We summarize significant improvements which have been achived in the development of Astro-E2 Hard X-ray Detector (HXD-II). An expanded energy range and better energy resolution have been achieved from progresses in device materials and redesigning of the front-end electronics. An improved estimation for the detector background in orbit has also been conducted based upon results from our proton irradiation experiment. The sensitivity of HXD-II can be expected to reach an order of 10 -6 [c s -1 keV -1 cm -2].

Original languageEnglish
Article numberN46-1
Pages (from-to)1689-1693
Number of pages5
JournalUnknown Journal
Publication statusPublished - 2003


  • γ-Ray
  • Astro-E2
  • Astrophysics
  • Detector
  • Hard X-ray

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Industrial and Manufacturing Engineering

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    Kokubun, M., Abe, K., Ezoe, Y., Fukazawa, Y., Hong, S., Inoue, H., Ito, K., Itoh, T., Kamae, T., Kasama, D., Kawaharada, M., Kawano, N., Kawashima, K., Kawasoe, S., Kobayashi, Y., Kotoku, J., Kouda, M., Kubota, A., Makishima, K., ... Yonetoku, D. (2003). Improvements of the Astro-E2 hard X-ray detector (HXD-II). Unknown Journal, 3, 1689-1693. [N46-1].