Photoluminescence and Scintillation Properties of SiO2 Glass Activated with Eu2+

被引：0
|
作者：
Fujimoto, Yutaka [1 ]
Yanagida, Takayuki [2 ]
Koshimizu, Masanori [1 ]
Asai, Keisuke [1 ]
机构：
[1] Tohoku Univ, Aoba Ku, Sendai, Miyagi 9808579, Japan
[2] Nara Inst Sci & Technol, Ikoma, Nara 6300192, Japan
来源：
SENSORS AND MATERIALS | 2015年 / 27卷 / 03期
关键词：
scintillator; glass; photoluminescence; thermoluminescence; Eu2+ 5d-4f transition;
D O I：
暂无
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The basic photoluminescence and scintillation properties of Eu-doped SiO2 glass are reported. When UV light was excited to the glass, an intense blue emission band was observed owing to the 4f(6)5d-4f(7) (S-8(7/2)) transition of Eu2+ emission centers. The fluorescence quantum efficiency (QE) and the decay time of Eu2+ were calculated to be about 95% and 1230 us, respectively. The 5d-4f emission band of Eu2+ also appeared in the 450 mu wavelength range in the X-ray-excited radioluminescence spectrum. By Am-241 alpha-ray-irradiated pulse height spectra, the relative scintillation light output was found to be about 110% compared with reference lithium silicate glass (GS20) scintillator.
引用
收藏
页码：263 / 268
页数：6
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