Comparative study of optical and scintillation properties of Ce:YAGG, Ce:GAGG and Ce:LuAGG transparent ceramics

被引：33
作者：
Mori, Masaki [1 ]
Xu, Jian [2 ]
Okada, Go [1 ]
Yanagida, Takayuki [1 ]
Ueda, Jumpei [2 ]
Tanabe, Setsuhisa [2 ]
机构：
[1] Nara Inst Sci & Technol NAIST, Grad Sch Mat Sci, 8916-5 Takayama Cho, Nara 6300192, Japan
[2] Kyoto Univ, Grad Sch Human & Environm Studies, Sakyo Ku, Yoshida Nihonmatsu Cho, Kyoto 6068501, Japan
来源：
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 2016年 / 124卷 / 05期
关键词：
Scintillator; Ce; YAGG; GAGG; LuAGG; SINGLE-CRYSTAL; ELECTRON-TRANSFER; LUMINESCENCE; GROWTH; EMISSION; CE3+;
D O I：
10.2109/jcersj2.15239
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We investigated photoluminescence (PL) and scintillation properties of 0.8 mol% Ce-doped (Y, Gd, Lu)(3)Al2Ga3O12 (Ce:YAGG, Ce:GAGG and Ce:LuAGG) transparent ceramics, which were fabricated by the vacuum sintering method. The obtained samples showed a strong and broad PL emission in the wavelength range from 470 to 600 nm owing to 5d-4f transitions of Ce3+. The PL and scintillation decay curves consisted of two or three exponential components, and the primary components ranged around 35-43 ns. Besides, the scintillation spectra excited by X-rays showed similar features with those in PL. In the X-ray induced afterglow measurements, the Ce: LuAGG sample exhibited the weakest afterglow intensity. The pulse height spectra of these samples showed clear photoabsorption peaks. Among those samples, Ce: LuAGG sample showed the highest scintillation light yield of 18,700 ph/MeV. (C) 2016 The Ceramic Society of Japan. All rights reserved.
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页码：569 / 573
页数：5
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