Preparation and properties of a new scintillating glass

来源期刊：中南大学学报(英文版)2002年第3期

论文作者：卢安贤 刘树江

文章页码：150 - 153

Key words：heavy-metal oxide; scintillating glass; fluorescence wavelength; decay time; radiation resistance

Abstract: A kind of new scintillating glass based on PbO^- B₂O₃ 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, ThF₄and PbF₄etc.scintilla-ting crystals, the glass has a higher density, a faster scintillation decay constant, a longer emission wavelength and cut off wave length. But its ability of radiation-resistance must be improved in order to meet the requirements of application in high energy physics experiments under 106rad radiation in Co60source.