NDLI: Study of energy response of Gd/sub 2/SiO/sub 5/:Ce/sup 3+/ scintillator for the ASTRO-E hard X-ray detector

Content Provider	IEEE Xplore Digital Library
Author	Uchiyama, Y. Kouda, M. Tanihata, C. Isobe, N. Takahashi, T. Murakami, T. Tashiro, M. Makihima, K. Fukazawa, Y. Kamae, T.
Copyright Year	1963
Abstract	The energy-dependent response of the crystalline oxide scintillator Gd/sub 2/SiO/sub 5/:Ce/sup 3+/ (GSO:Ce) is studied in the energy range from 14 to 662 keV as a part of the preflight calibration of the hard X-ray detector (HXD) onboard the ASTRO-E satellite. In the relation between photon energy deposited and light yields, there exists nonproportionality and discontinuity around the energy of the gadolinium K-edge (50.2 keV). In 16 GSO scintillator units of the HXD flight model, the same characteristics of the energy response are confirmed. To evaluate the response across the K-edge quantitatively, we measure the "electron response" by means of the Compton coincidence technique. By using the electron response of the GSO crystal, we calculate the light yield nonproportionality as a function of deposited photon energy. We find that a photopeak line profile of the 59.5-keV emission of /sup 241/Am is well modeled by a composite Gaussian. This will be discussed in terms of the light yield nonproportionality.
Sponsorship	IEEE Nuclear and Plasma Sciences Society Computer Applications in Nuclear and Plasma Sciences (CANPS) Lawrence Berkeley Lab. Lawrence Livermore Nat. Lab. APS College of William and Mary Continuous Electron Beam Accelerator Facility NASA Defence Nuclear Agency Sandia National Laboratories Jet Propulsion Laboratory Brookhaven Nat. Lab. Lawrence Livermore Nat. Lab IEEE/NPPS Radiat. Effects Committee Defence Nuclear Agency/DoD Sandia National Laboratories/DOE Jet Propulsion Laboratory/NASA Phillips Lab./DoD
Starting Page	379
Ending Page	384
Page Count	6
File Size	148237
File Format	PDF
ISSN	00189499
Volume Number	48
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Photonic crystals X-ray detectors Physics Extraterrestrial measurements Radiation detectors Satellites Electrons X-ray imaging Crystallization Calibration
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Electrical and Electronic Engineering Nuclear Energy and Engineering

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Study of energy response of Gd/sub 2/SiO/sub 5/:Ce/sup 3+/ scintillator for the ASTRO-E hard X-ray detector

Performance of the ASTRO-E hard X-ray detector

Hard X-ray (>15 keV) facility for calibration of space astronomy experiments

Achievements of the ASTRO-E Hard X-ray Detector development

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Electron and photon responses of Gd/sub 2/SiO/sub 5/(Ce/sup 3+/) and BaF/sub 2/

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