Title :
Performance of the ASTRO-E hard X-ray detector
Author :
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,
Author_Institution :
Dept. of Phys., Saitaina Univ., Saitama, Japan
fDate :
8/1/2002 12:00:00 AM
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 × 10-5 counts s-1 cm-2 keV-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.
Keywords :
X-ray astronomy; X-ray detection; artificial satellites; calibration; solid scintillation detectors; 10 to 60 keV; 30 to 600 keV; ASTRO-E hard X-ray detector; ASTRO-E satellite; Bi4Ge3O12; Gd2SiO5; compound-eye configuration; high energy resolution; low background; performance; phoswich counters; preflight calibration; scintillators; Calibration; Energy resolution; Photonic crystals; Physics; Radiation detectors; Satellite broadcasting; Silicon; Space technology; Space vehicles; X-ray detectors;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2002.801491
