Luminescent properties of Eu3+ doped heavy tellurite scintillating glasses

Eu³⁺ doped tellurite scintillating glasses were prepared by the conventional melt-quenching method. The physical and luminescent properties of glasses were investigated by DTA, density, transmittance spectra, photoluminescence spectra, and X-ray excited luminescence (XEL) spectra. The densities of the glasses are in the range from 5.89 g/cm³ to 6.05 g/cm³. The glasses exhibit intense red emissions upon 393 nm light and X-ray excitations. The maximum integral XEL intensity of the glasses is about 6% of that of commercial Bi₄Ge₃O₁₂ (BGO) scintillating crystal. The results reveal that Eu³⁺ doped tellurite glass could be a scintillator candidate used in X-ray detection field.