为了考察光电倍增管的性能，以使其满足空间遥感仪器在轨应用需求，利用氘灯、真空紫外单色仪、光电倍增管等构建了一套基于标准真空光电管的量子效率定标系统，依据光电倍增管的阴极量子效率测量原理，将光电倍增管改造成无电子束倍增的光电管，实现了由标准真空光电管到光电管R2078的标准传递; 并在此基础上，在国内首次实现了150～300 nm紫外-真空紫外波段光电管量子效率的直接测量。测量结果表明：由于光电管R2078的窗口材料为融石英，其在155 nm处的透过率最小，因此在155 nm处获取的量子效率最小，在230 nm波长处量子效率最大。最后对测量结果进行不确定度分析与估计，得到总的合成不确定度为3.4%。

In order to investigate the performance of photomultiplier tube to meet the needs of on-orbit application requirements of the space remote sensing instruments, we construct a set of quantum efficiency calibration system based on standard vacuum phototube with deuterium lamp, vacuum ultraviolet monochromator, photomultiplier tube, and so on. According to the principle of the cathode quantum efficiency measurement about photomultiplier tube, the photomultiplier tube is transformed into phototube without electron beam multiplying, and the standard transferring from the standard vacuum phototube to the phototube R2078 is realized. On this basis, direct measurement of the quantum efficiency of phototube in ultraviolet-vacuum ultraviolet (UV-VUV) range of 150-300 nm is realized for the first time in China. The measurement results show that, owing to the window material is fused silica, the phototube R2078 has the lowest transmissivity at 155 nm, so the quantum efficiency obtained at 155 nm is the smallest, and the quantum efficiency at 230 nm is the largest. Finally, the uncertainty of the measurement results is analyzed and estimated, and the total synthetic uncertainty is 3.4%.