Correlation between crystal grain sizes of transparent ceramics and scintillation light yields
Correlation between crystal grain sizes of transparent ceramics and scintillation light yields
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DOI：
10.1016/j.ceramint.2011.10.052
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发表时间：
2012-04-01
影响因子：
5.2
通讯作者：
Goto, Takashi
中科院分区：
文献类型：
--
作者：
Fukabori, Akihiro;An, Liqiong;Goto, Takashi
Y_2O_3陶瓷的光产额因样品不同而不同。这一现象的性质尚不清楚。此外，Y2O_3发射峰的来源还不是很清楚。结果表明，捕获激子产生的发射是由陶瓷晶界积累的缺陷引起的。本文引入平均晶粒度来评价陶瓷内部缺陷。论证了平均晶粒度与闪烁光产额之间的关系。(C)2011年爱思唯尔有限公司和Techna Group S.r.l.版权所有。
Light yields of Y2O3 ceramics are different from specimen to specimen. Nature of this phenomenon is not clear yet. Furthermore, origin of emission peaks for Y2O3 is not well understood. The results reported suggest that the emission derived from trapped excitons originates from the defects accumulated in the grain boundaries of the ceramics. In this paper, average grain size is introduced in order to evaluate defects inside the ceramics. Relationship between average crystal grain size and scintillation light yield is demonstrated. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.