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, J. 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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

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
DOIs
Publication statusPublished - 2002 Aug
Externally publishedYes

Keywords

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

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering

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