摘要
A series of scintillating glass in SiO2-Li2O-CaO, SiO2-Li2O-CaO-Gd2O3 were developed to explore the influence of different composition on the density and the luminescent properties of the sample. The effects of Ce^3＋ sources and melting atmosphere on the light yield of the scintillating glass were investigated. Results show that the highest density of the scintillating glass in this study is as high as 3.3 g/cm^3 and the highest light yield have reached 1175 phonons/Mev, which is about 3% of the light output of NaI：Ti. The introduction of Gd2O3 in the system could increase the glass density visibly and do not lower the light yield of the scintillating glass. The glass-melting atmosphere has strong influence on the light yield of Ce^3＋-doped scintillating glasses and strong reducing atmosphere results in high light yield. The light yield of scintillating glass with Ce^3＋ from CeF3 is much higher than that of corresponding glass with Ce^3＋ from Ce2O3.
A series of scintillating glass in SiO2-Li2O-CaO, SiO2-Li2O-CaO-Gd2O3 were developed to explore the influence of different composition on the density and the luminescent properties of the sample. The effects of Ce^3＋ sources and melting atmosphere on the light yield of the scintillating glass were investigated. Results show that the highest density of the scintillating glass in this study is as high as 3.3 g/cm^3 and the highest light yield have reached 1175 phonons/Mev, which is about 3% of the light output of NaI：Ti. The introduction of Gd2O3 in the system could increase the glass density visibly and do not lower the light yield of the scintillating glass. The glass-melting atmosphere has strong influence on the light yield of Ce^3＋-doped scintillating glasses and strong reducing atmosphere results in high light yield. The light yield of scintillating glass with Ce^3＋ from CeF3 is much higher than that of corresponding glass with Ce^3＋ from Ce2O3.
基金
Supported by the National Natural Science Foundation of China (No.50572090)
