采用高温熔融法制备Ce3+或Tb3+单掺和Ce3+/Tb3+共掺钆-钡-硅酸盐闪烁玻璃。通过透射光谱、光致激发和发射光谱、X射线激发发射光谱及荧光衰减曲线等手段对其发光性能进行研究。实验结果表明: 在紫外光的激发下,Tb3+掺杂闪烁玻璃发出明亮的绿光(544 nm)，而Ce3+掺杂闪烁玻璃发出蓝紫光。对于Ce3+/Tb3+共掺闪烁玻璃，在紫外光和X射线激发下均观察到Ce3+离子敏化Tb3+离子发光的现象，这是由于存在Ce3+→Tb3+的能量转移。Ce3+/Tb3+共掺闪烁玻璃的最佳Ce2O3掺杂摩尔分数为0.2%，此时Ce3+离子向Tb3+离子的能量传递效率为45.7%。在X射线激发下，Ce2O3摩尔分数为0.2%的Ce3+/Tb3+共掺闪烁玻璃在544 nm处的发光强度是Bi4Ge3O12 (BGO)闪烁晶体在500 nm处发光强度的4.2倍，积分闪烁效率达到BGO晶体的55.6%，这有利于在高分辨率医学成像中降低辐射剂量。

Novel Tb3+ or Ce3+ doped and Tb3+/Ce3+ codoped Gd-Ba-silicate scintillating glasses were synthesized by melt-quenching method. The luminescence properties were studied by transmission spectra, photoluminescence excitation and emission spectra, X-ray excited luminescence spectra and luminescence decay curves. The results show that Tb3+ doped scintillating glasses exhibit bright green emission at about 544 nm and Ce3+ doped scintillating glasses have a strong purplish-blue light under ultraviolet excitation. For Tb3+/Ce3+ codoped scintillating glasses, Ce3+ ions can strongly sensitize the luminescence of Tb3+ ions under both UV and X-ray excitation, which is caused by the energy transfer process from Ce3+ to Tb3+ ions. The optimal doping mole fraction of Ce2O3 in Tb3+/Ce3+ codoped scintillating glasses was 0.2%. In this case, the evaluated energy transfer efficiency from Ce3+ to Tb3+ is about 45.7%. Under X-ray excitation, not only the intensity of 544 nm emission in Tb3+/Ce3+ codoped scintillating glasses with 0.2% of Ce2O3 was 4.2 times than that of 500 nm emission in the commercial Bi4Ge3O12 (BGO) crystals, but also the integral scintillation efficiency was about 55.6% of the BGO crystals. It is beneficial for reducing radiative dose to obtain high-resolution medical X-ray imaging.