Synthesis, characterization and TL properties of SrSO4:Dy,Tb nanocrystalline phosphor
作者： Rezaee Ebrahim Saraee Khadijeh , Aghay Kharieky Amin , Erfani Maryam , None
DOI: 10.1016/S1002-0721(14)60174-5
关键词:
摘要: Abstract SrSO4:Dy,Tb nanocrystalline with crystalline size in the range of 44–54 nm was prepared by co-precipitation method followed thermal treatment and characterized X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDX) UV-visible spectrometry. Our results provided direct evidence incorporation impurities into SrSO4. The thermoluminescence (TL) properties pellets irradiated gamma rays at different doses were studied. TL glow curve had a prominent peak around 490 K small 430 K. major almost resolved from other peaks, which analyzed using Chen's shape to determine kinetic parameters such as activation energy, E order, b. intensity main dosimetric increased linearly increase dose. response linear 0.1–7 kGy. These made it candidate dosimeter be used for estimating high dose rays.
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