Synthesis and luminescence in LiMgPO4:Tb,Sm,B phosphors with possible applications in real-time dosimetry

被引:42
作者
Gai Minqiang [1 ,2 ,3 ]
Chen Zhaoyang [1 ,2 ]
Fan Yanwei [1 ,2 ]
Wang Junhua [1 ,2 ]
机构
[1] Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China
[2] Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
基金
中国国家自然科学基金;
关键词
dosimetry; LiMgPO4:Tb; B; optic-fibre; OSL; real-time; rare earths; OPTICALLY STIMULATED LUMINESCENCE; OSL PHOSPHOR; LIMGPO4/TB; B;
D O I
10.1016/S1002-0721(12)60318-4
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The objective of this work was to develop possible materials for optically stimulated luminescence (OSL) dosimetric applications in real-time measurement. A novel material of LiMgPO4:Tb,Sm, B was prepared by solid-state diffusion method at 900 degrees C. The structure and optical properties of these phosphors were characterized by X-ray diffraction, fluorescence spectrophotometer, and OSL reader. The results showed that the full discrimination between the stimulation and emission spectra made them very fit for the optic-fibre dosimetry. The OSL vs. dose response was linear in the dose range of 0.1 to 216 Gy. It also showed a significant improvement in the stimulation time compared with LiMgPO4:Tb,B. Hence, the phosphor could be used in the real-time dosimeter based on the OSL technology for medical monitoring as well as for environmental dosimetry and space dosimetry.
引用
收藏
页码:551 / 554
页数:4
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