Title :
Achievements of the ASTRO-E Hard X-ray Detector development
Author :
Tashiro, M. ; Makishima, K. ; Kamae, T. ; Murakami, T. ; Takahashi, T. ; Fukazawa, Y. ; Kokubun, M. ; Nakazawa, K. ; Nomachi, M. ; Yoshida, A. ; Ezoe, Y. ; Isobe, N. ; Yomoto, N. ; Kataoka, J. ; Kotoku, J. ; Kouda, M. ; Kubo, S. ; Kubota, A. ; Matsumoto,
Author_Institution :
Dept. of Phys., Saitama Univ., Urawa, Japan
Abstract :
The ASTRO-E Hard X-ray Detector utilized GSO/BGO well-type phoswich counters in 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 observes 30-600 keV photons, while silicon PIN diodes of 2 mm thick placed in front of each GSO crystal covers 10-60 keV photons with energy resolution of ∼3.5 keV FWHM. The design goals both of low background and high energy resolution in the hard X-ray bands were confirmed to be achieved through the preflight calibration experiments.
Keywords :
X-ray astronomy; X-ray detection; p-i-n photodiodes; silicon radiation detectors; solid scintillation detectors; ASTRO-E Hard X-ray Detector development; BGO active shield wells; GSO crystal; GSO scintillators; GSO/BGO well-type phoswich counters; Si; compound-eye configuration; energy resolution; hard X-ray bands; preflight calibration experiments; silicon PIN diodes; Calibration; Energy resolution; Instruction sets; Instruments; Photonic crystals; Physics; Space technology; Space vehicles; X-ray detection; X-ray detectors;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2001 IEEE
Print_ISBN :
0-7803-7324-3
DOI :
10.1109/NSSMIC.2001.1008503
