Comparative study of ceramic and single crystal Ce:GAGG scintillator

被引：568
作者：
Yanagida, Takayuki [1 ]
Kamada, Kei
Fujimoto, Yutaka [1 ]
Yagi, Hideki [2 ]
Yanagitani, Takagimi [2 ]
机构：
[1] Kyushu Inst Technol, Wakamatsu Ku, Kitakyushu, Fukuoka 8080196, Japan
[2] Konoshima Chem Co Ltd, Mitoya, Kagawa 7691103, Japan
来源：
OPTICAL MATERIALS | 2013年 / 35卷 / 12期
关键词：
Single crystal; Ceramic; Scintillation detector; Ce3+; Scintillator; LUMINESCENCE PROPERTIES; GROWTH; DEPENDENCE; PHOSPHOR;
D O I：
10.1016/j.optmat.2013.07.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Recent study revealed that single crystal Ce:Gd-3(Al,Ga)(5)O-12 (Ce:GAGG) showed good scintillation response under gamma-ray exposure. We discover here that ceramic Ce:GAGG scintillator exhibited better performance than the single crystal counterpart. We developed Ce 1% doped ceramic and single crystal GAGG scintillators with 1 mm thick and compared their properties. In radioluminescence spectra, they showed intense emission peaking at 530 nm due to Ce3+ 5d-4f transition. The Cs-137 gamma-ray induced light yields of ceramic and single crystal resulted 70000 ph/MeV and 46000 ph/MeV with primary decay times of 165 and 143 ns, respectively. At present, the observed light yield was the brightest in oxide scintillators. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：2480 / 2485
页数：6
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