Design and fabrication of Tb3+ doped Gd2O3-WO3-SiO2 scintillating glass

被引：3
|
作者：
Tang, Junzhou [1 ,2 ]
Lin, Ziyu [1 ,2 ]
Tu, Degui [1 ,2 ]
Wei, Tianxia [1 ,2 ]
Duan, Rui [1 ,2 ]
Zhou, Shifeng [1 ,2 ]
机构：
[1] South China Univ Technol, Sch Mat Sci & Engn, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Peoples R China
[2] Guangdong Prov Key Lab Fiber Laser Mat & Appl Tech, Guangdong Engn Technol Res & Dev Ctr Special Opt F, Guangzhou 510640, Peoples R China
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS-X | 2022年 / 15卷
基金：
中国国家自然科学基金;
关键词：
Scintillating glass; Glass bleaching; X-ray monitoring; LUMINESCENCE; YIELD;
D O I：
10.1016/j.nocx.2022.100110
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Developing novel scintillating glass with high density and intense radioluminescence is of critical importance for various radiation-related technologies. In this paper, Tb-doped Gd2O3-WO3-SiO2 (GWS) scintillating glass was prepared and investigated. The optical and scintillation properties are explored. And the optimal concentration of Tb activators in glass excited by UV-light and X-ray is determined. Moreover, annealing glass enables a unique glass bleaching phenomenon. Benefitting from the increasement in transparency, a notable improvement in photoluminescence (-195% enhancement in intensity) and radioluminescence (-146% enhancement in intensity) could be realized. The optical and structural characterizations reveal a dramatic change of W chemical valance state from W5+ to W6+, which is supposed to govern the decoloring process. Our research indicates that Tb-doped GWS scintillating glass can be a potential candidate for X-ray monitoring.
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页数：6
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