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 be...