【摘 要】
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A kind of new scintillating glass based on PbO-Bi2O3 heavy-metal oxides was prepared by doping a certain amount of SiO2, B2O3 and a little Ce3+ ions as fluoresc
【机 构】
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School of Materials Science and Engineering, Central South University, Changsha 410083, China
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A kind of new scintillating glass based on PbO-Bi2O3 heavy-metal oxides was prepared by doping a certain amount of SiO2, B2O3 and a little Ce3+ ions as fluorescence agent using conventional melt quenching technology. The fluorescence properties of the glass were investigated by means of ultraviolet-visible (UV-VIS) absorption spectrum, excitation spectrum, emission spectrum, multi-channel time spectrum and transmission spectrum. The results show that the density of the glass reaches 7.89 g/cm3, and its fluorescence emission wavelength is 547 nm, fluorescence fade time 18.68 ns. Compared to CeF3, YAP, GSO, ThF4 and PbF4 etc. scintilla-ting crystals, the glass has a higher density, a faster scintillation decay constant, a longer emission wavelength and cut off wavelength. But its ability of radiation-resistance must be improved in order to meet the requirements of application in high energy physics experiments under 106 rad radiation in Co60 source.
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