闪烁玻璃原料的共沉淀法制备及其光学性能研究

Study on the Co-Precipitation Preparation of Scintillating Glass Raw Material and Its Optical Properties

采用共沉淀法制备了含0.2Pr3+:52PbO-13Bi2O3-23.33B2O3-11.67SiO2重金属氧化物玻璃组分的胶状物,作为重金属氧化物玻璃原料。该玻璃的密度为6.956g/cm3,可见光透过率为62%,紫外吸收截止波长为410nm,该玻璃系统能耐105r/min辐照损伤。用H2灯弱光源激发进行荧光寿命测试,0.2Pr3+:52PbO-13Bi2O3-23.33B2O3-11.67SiO2组分玻璃在H2灯激发下具有1.43ns及5.83ns的双指数荧光衰减时间。

The colloid with composition of 0.2Pr3＋：52PbO-13Bi2O3-23.3382O3-11.67SiO2 （mol%） was prepared by co-precipitation method, for using as raw material of heavy-reetal oxide glass. The density of the glass was 6.956 g/cm3. The visible transmittance was 62 %, and the wavelength of absorption edge was 410 nm. This glass system was able to resist 10^5 rad radiation damage. By the decay time measurement with the excitation of H2-tamp weak light source, it showed that the double exponential decay time of glass sample was 1.43 ns and 5.83 ns.