Hole traps in Lu2O3:Eu ceramic scintillators.: II.: Radioluminescence and thermoluminescence

被引:25
作者
Bartram, RH [1 ]
Lempicki, A
Kappers, LA
Hamilton, DS
机构
[1] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA
[2] ALEM Assoc, Boston, MA 02115 USA
基金
美国国家卫生研究院;
关键词
ceramic scintillators; radioluminescence; thermoluminescence; Lu2O3 : Eu;
D O I
10.1016/j.jlumin.2003.09.008
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A sample of Eu3+-activated lutetium sesquioxide transparent ceramic has been investigated by combined scintillation and thermoluminescence excited by prolonged gamma-ray irradiation. The thermo luminescence glow curve partially confirms and extends a previous model for afterglow following pulsed X-ray excitation. The initial concentration of hole traps, tentatively attributed to anion Frenkel defects in thermodynamic equilibrium, is found to be substantially augmented by reversible radiation damage. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:169 / 176
页数:8
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