多碱光电阴极多信息量测试技术研究

Characterization of the Multi-alkali Photocathode

阐述了多碱光电阴极的单色光反射比、单色光电流和光谱响应曲线的测试原理 ,这些参量的获得对分析、指导阴极工艺是很有价值的。介绍了多碱光电阴极多信息量测试系统 ,该系统可在多碱光电阴极制备过程中在线测试、处理多碱阴极的单色光反射比、单色光电流和光谱响应曲线等参量 。

The system for measuring various key parameters of the multi alkali photocathode,including itsreflectance,its monochromatic photocurrent,its spectral response and the film thickness was successfully deve loped.The on line measuring principle during the cathode fabrication was also discussed.