PHOTOSTIMULATED LUMINESCENCE AND THERMALLY STIMULATED LUMINESCENCE OF SOME NEW X-RAY STORAGE PHOSPHORS

被引：83

作者：

MEIJERINK, A

BLASSE, G

机构：

[1] Debye Research Institute, University of Utrecht, TA Utrecht, 3508

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 1991年 / 24卷 / 04期

关键词：

D O I：

10.1088/0022-3727/24/4/016

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The photostimulated luminescence (PSL) and thermally stimulated luminescence (TSL) properties of two new x-ray storage phosphors, Ba2B5O9Br-Eu2+ and Ba5GeO4Br6-Eu2+, are reported and discussed. The PSL measurements show that bromine vacancies act as electron traps and that Eu2+ is involved in the hole trapping. A direct recombination mechanism, suggested by PSL results, is confirmed by TSL measurements. Analysis of the glow curves shows first-order kinetics in combination with low-frequency factors which is characteristic for centre-to-centre recombination.

引用

页码：626 / 632

页数：7

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