摘要
实验中采用高温熔融法制备了一系列高钆镥硼硅酸盐新型玻璃体系样品,研究了这种新型玻璃体系的玻璃形成区,测量了样品的玻璃稳定性和密度。结果表明,玻璃体系的玻璃形成区较广,玻璃稳定性良好(析晶温度与转变温度的差为262℃),且玻璃样品的密度达到5g/cm3。以此种玻璃体系作为基质掺入Ce3+离子,测量其透过光谱、激发光谱、发射光谱、X射线激发发射光谱以及Gd3+离子的衰减时间。结果表明,玻璃的透过性能适合Ce3+离子的掺杂,并且Gd2O3和Lu2O3对闪烁体发光都具有积极的影响,同时研究了Gd3+离子和Ce3+离子的能量传递机理及最佳能量传递掺杂摩尔比。从玻璃的物理性能和光谱性能考虑,这种闪烁玻璃系统具有广泛应用于高能物理材料中的一定潜力。
A kind of high lutetium-gadolinium borosilicate glass is prepared by high temperature melting method at different temperatures. Formation range of this glass system is experimentally studied and their density and thermal stability is measured. It is found that the glass phase is wide, and the glass has well thermal stability as well as high density that is up to 5 g/cm3. The transmission, emission, excitation spectra, emission spectra under X-ray excitation and decay curves of Gd3＋ ions of Ce3＋ -doped glass are measured. The results show that the transmission performance of glass is appropriate for Ce3＋ ion doping, and both Gd2O3 and Lu2O3 have a positive influence on scintillator emission, Gd3＋ ion and Ce3＋ ion energy transfer mechanism and the doping concentration for best energy transfer are studied. Considering the physical properties and optical properties of glass, the scintillation glass system has a certain potential applications in high-energy physics material.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2013年第2期137-142,共6页
Acta Optica Sinica
基金
国家自然科学基金(50972061
51272109
61275180)
浙江省自然科学基金(Z4110072
R4100364)
核探测与核电子学国家重点实验室(中国科学院高能物理研究所和中国科学技术大学)
宁波大学王宽诚幸福基金
浙江省重中之重学科开放基金资助课题
关键词
材料
闪烁玻璃
光谱分析
钆镥硼硅酸盐
高密度
materials
scintillating glasses
spectral analysis
lutetium-gadolinium borosilicate glass
high density
