A method for measuring TTS of photomultiplier with Cherenkov lightproduced by direct gamma ray illumination on glass windowis presented and theexperi mental result for fine-mesh R5924 is given.

• 描述了一种利用伽马射线照射光阴极生成的切伦科夫光来测定光电倍增管渡越时间分散的实验方法；并利用这种方法测量了Hamamatsu R-5924光电倍增管的渡越时间分散.