增加Yb:YAG闪烁探测器脉冲输出电荷的实验测量

The Measurement of Increase Yb: YAG Scintillation Detector Pulse Output Electric Charge

为增加Yb:YAG闪烁探测器的有效脉冲输出电荷量,对Yb:YAG闪烁体采取了类似Na I的封装方式,在快脉冲X辐射源场中,应用透紫GD40光电管和普通光谱响应GD40光电管,对Yb:YAG封装与不封装的脉冲输出特性进行了监测。实验结果表明:对Yb:YAG闪烁体进行封装相对无封装情况脉冲输出电荷量增加最大达90%,统计涨落可降低约1/3。

In order to increase the effective quantity of the pulse output charge of Yb： YAG scintillation detector,several Yb： YAG scintillators were encapsulated just as a Na I scintillator was. In a fast pulse X-ray field,the pulse output character of a encapsulated Yb： YAG scintillators and a un-encapsulated one were measured,matching with a common GD40 photoelectric tube and an ultraviolet ray transmitting GD40 tube. As is shown in the results,after the Yb： YAG scintillator is encapsulated,the quantity of the pulse output charge is increased by 90%,the statistic fluctuation of the waveform could be reduced by 1/3.