Optically stimulated luminescence in anion-defective carbon doped alpha-Al2O3 crystals

被引：4

作者：

Kristianpoller, N ^{[1
]}

Oster, L ^{[1
]}

机构：

[1] BEN GURION UNIV NEGEV,DEPT PHYS,IL-84105 BEER SHEVA,ISRAEL

来源：

RADIATION EFFECTS AND DEFECTS IN SOLIDS | 1995年 / 134卷 / 1-4期

关键词：

luminescence; defects; aluminum oxide;

D O I：

10.1080/10420159508227237

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：

Optically stimulated luminescence (OSL) was studied in C-doped alpha-Al2O3 crystals, which had previously been exposed to X or beta irradiations. The OSL was excited by monochromatic UV light in 200-300 nm region. Emission maxima appeared at 330 nm and 410 nm which are attributed to F+ and F-luminescence respectively. This is supported by measurements of excitation spectra, which showed maxima at 260 and 215 nm. Results were compared to those obtained by measurements of the X-luminescence and phototransferred thermoluminescence in the same samples as well as in pure alpha-Al2O3 crystals. Effects of previous irradiations and of thermal treatment on the OSL intensities were also investigated.

引用

页码：311 / 313

页数：3

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