Thermoluminescence kinetics of undoped and doped (Ti, Cu, Ce) lithium aluminate crystals

被引：8
作者：
Kilian, A. [1 ]
Bilski, P. [1 ]
Gieszczyk, W. [1 ]
机构：
[1] Polish Acad Sci, Inst Nucl Phys IFJ, Krakow, Poland
来源：
RADIATION MEASUREMENTS | 2017年 / 106卷
关键词：
Thermoluminescence; Lithium aluminate; Micro Pulling Down; OPTICALLY STIMULATED LUMINESCENCE; OSL; DEFECTS; TL;
D O I：
10.1016/j.radmeas.2017.07.010
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
Lithium aluminate (LiAlO2) crystals, both undoped and doped with Ti, Cu and Ce, were grown using the Micro Pulling Down method and their thermoluminescence (TL) was studied. The first order Kinetics of thermoluminescent glow curves was confirmed. The T-max-T-stop method showed the existence of a high number of overlapping peaks. The same conclusion followed from the deconvolution of TL glow curves. We show that TL signal consists of at least 9 overlapping peaks. Comparison of trap parameters obtained with deconvolution and the variable heating rate method is presented. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：107 / 112
页数：6
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