Recharging Processes of Ce3+ in Gamma-irradiated YAG:Ce Single Crystals

被引：1
作者：
Butaeva, T. [1 ]
Ghambaryan, I. [1 ]
Mkrtchyan, M. [2 ]
机构：
[1] Natl Acad Sci, Inst Phys Res, Ashtarak 0203 2, Armenia
[2] Natl Sci Lab, Yerevan 0036, Armenia
来源：
OPTICS AND SPECTROSCOPY | 2015年 / 118卷 / 02期
关键词：
OPTICAL-PROPERTIES; Y3AL5O12; CRYSTALS; IRREGULAR CE3+; SCINTILLATORS; LUMINESCENCE; CENTERS; ABSORPTION; DEFECTS; GLASS;
D O I：
10.1134/S0030400X15020046
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The influence of gamma-irradiation on the spectral properties of YAG and YAG:Ce (similar to 0.12 and similar to 0.2 at %) single crystals is studied. The interrelation between the changes of gamma-induced absorption of Ce3+ and of some color centers in the crystals is established. It is shown that the analysis of radiative behavior of Ce3+ in YAG:Ce crystals gives the opportunity: to evaluate a quantity of electron-hole traps influencing on cerium ions in as-grown crystals and involving in radiation processes of cerium ions recharging; to predict the concentration changes of Ce3+ in the crystals irradiated by doses (1.13-5.5) x 10(7) rad of gamma-rays. The reasons of the activator ions concentration impact on the various radiation behaviors of.-induced absorption and optical quality of these crystals are discussed.
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收藏
页码：247 / 254
页数：8
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