LAUSR

Abstract LiMgPO 4 :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 LiMgPO 4 :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 LiMgPO 4 :Tm,Tb phosphors enable them to be promising candidates in radiation dosimetry.