Hole traps in Lu2O3:Eu ceramic scintillators.: I.: Persistent afterglow

被引：45
作者：
Brecher, C
Bartram, RH [1 ]
Lempicki, A
机构：
[1] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA
[2] ALEM Assoc, Boston, MA 02115 USA
来源：
JOURNAL OF LUMINESCENCE | 2004年 / 106卷 / 02期
基金：
美国国家卫生研究院;
关键词：
ceramic scintillators; radioluminescence; persistent afterglow; Lu2O3 : Eu;
D O I：
10.1016/j.jlumin.2003.09.007
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The temporal dependence of X-ray excited scintillation from Eu3+-activated lutetium oxide transparent optical ceramic has been studied both experimentally and theoretically. The waveform of the decay was measured on time scales ranging from 100 ns to 5 min. Kinetic equations were applied and a computational model was developed to describe the observed temporal behavior. This model involves two overlapping Gaussian distributions of trap depths; those ranging from 0.58 to 1.0 eV may contribute to afterglow. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：159 / 168
页数：10
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