Synthesis and luminescence in LiMgPO4:Tb,Sm,B phosphors with possible applications in real-time dosimetry
来源期刊：Journal of Rare Earths2013年第6期
论文作者：盖敏强 陈朝阳 范艳伟 王军华
文章页码：551 - 554
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 ℃.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.
盖敏强1,2,3，陈朝阳1,2，范艳伟1,2，王军华1,2
1. Xinjiang Technical Institute of Physics & Chemistry,Chinese Academy of Sciences2. Xinjiang Key Laboratory of Electronic Information Materials and Devices3. University of Chinese Academy of Sciences
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 ℃.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.
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