介绍了光电倍增管所用的K_2C_SSb碱源定量的研制。该光电倍增管制作采用碱源定量的方式,制备出实用的双碱光电倍增管,其具有实用的半透明光电阴极。该光电倍增管具有良好的光电转换特性,可与碘化钠晶体配合,组成具有探测核粒子功能的核探测器。 The development of K_2C_SSb alkali source for photomultiplier tube was introduced. The photomultiplier tube is manufactured in a manner that uses a source of alkalinity to produce a practical double-base photomultiplier tube with a practical translucent photocathode. The photomultiplier tube has good photoelectric conversion properties, can cooperate with sodium iodide crystals to form a nuclear detector with the function of detecting nuclear particles.