Optically stimulated luminescence（OSL） of LiMgPO4:Tm,Tb phosphor
来源期刊：Journal of Rare Earths2017年第6期
论文作者：郭竞渊 唐强 张纯祥 罗达玲 刘小伟
文章页码：525 - 529
摘 要：LiMgPO4:Tm,Tb phosphors were synthesized using a solid-state diffusion method. Their properties were investigated using X-ray diffraction（XRD）, thermoluminescence（TL）, scanning electron microscopy（SEM）, and OSL dosimetric techniques. The influence of light stimulation and thermal excitation on the TL and OSL, and the reusability of the phosphors for OSL regenaration were also studied. The LiMgPO4:Tm,Tb phosphor exhibited high sensitivity to ionizing radiation, good signal reusability and a broad linear dose response range（0.1–1000 Gy）. Fading of the OSL signal was about 16% in eight days, after that the intensity kept stable. The excellent luminescent and dosimetric properties of these LiMgPO4:Tm,Tb phosphors enable them to be promising candidates in radiation dosimetry.
郭竞渊，唐强，张纯祥，罗达玲，刘小伟
School of Physics, Sun Yat-sen University
摘 要：LiMgPO4:Tm,Tb phosphors were synthesized using a solid-state diffusion method. Their properties were investigated using X-ray diffraction（XRD）, thermoluminescence（TL）, scanning electron microscopy（SEM）, and OSL dosimetric techniques. The influence of light stimulation and thermal excitation on the TL and OSL, and the reusability of the phosphors for OSL regenaration were also studied. The LiMgPO4:Tm,Tb phosphor exhibited high sensitivity to ionizing radiation, good signal reusability and a broad linear dose response range（0.1–1000 Gy）. Fading of the OSL signal was about 16% in eight days, after that the intensity kept stable. The excellent luminescent and dosimetric properties of these LiMgPO4:Tm,Tb phosphors enable them to be promising candidates in radiation dosimetry.
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