本文描述一种玻璃真空系统、可折电子枪式阴极射线致发光仪,它可以测量快达10~(-8)sec短时发光衰减过程。文中讨论了光电倍增管阳极回路特性,建议采用宽带示波器,其频带宽度为衰减时间常数倒数的三倍,否则就要进行修正。用该仪观察了ZnO∶Zn发光衰减过程,测量结果和其他作者的完全符合。 This article describes a glass vacuum system, a foldable electron gun cathodoluminescence instrument that measures short-term light emission decay rates of up to 10 -8 sec. In this paper, the characteristics of the photomultiplier tube anode loop are discussed. It is recommended to use a wideband oscilloscope with a bandwidth that is three times the inverse of the decay time constant, otherwise the correction should be made. The instrument was used to observe the ZnO: Zn emission decay process, the measurement results and other authors fully comply.