Luminescence and scintillating properties of Tb3+ in phosphate glass and silicate glass ceramics

Tb3+离子掺杂闪烁玻璃和光纤面板，由于具有对X射线的高吸收特性和高分辨率成像特性，因而，在工业、国防领域中的高能射线无损检测以及低能量X射线的医疗诊断中广泛应用。目前国外常用的为Tb3+离子掺杂硅酸盐玻璃基质，其光输出效率还远低于闪烁晶体或多晶屏，且硅酸盐玻璃在高稀土离子掺杂浓度下的热机械性质不利于光纤拉制。因而，研究开发新的具有较高发光效率和热机械性能的’Tb3+离子掺杂闪烁玻璃，对获得自主知识产权的闪烁玻璃和光纤面板产品具有重要意义。Tb3+-doped scintillating glass and glass fiber plate have been xtensively used as Non-destructive Testing with high energy X-ray in industrial field and Medical Diagnosis due to their high absorption coefficient and high spatial resolution. At present, silicate glass was often chosed as a matrix for Tb3+, but its light out is far lower than scintillator crystal. In addition, silicate glass with high concentration ofrare earth ions has poor thermal stability performance Tb3+-doped scintillating glass for fiber drawing. So it is important for studing new thermal stability. with high light out and good thermal stability