【摘要】 透射式光阴极的厚度,直接影响光阴极的光电子发射效率和光谱响应。本文讨论了光学吸收和光电子逸出深度与多碱光阴极厚度的关系;从理论上分析了透射式多碱光阴极的最佳厚度。并提出了确定最佳厚度的监测和计算方法。最后给出了多碱光阴极在几个给定工作波长的最佳厚度。更多还原

【Abstract】 The thickness of transmission-mode photocathode affects directly its photoelectric efficiency and spectral response. In this paper, the relationships between the thickness and the optical absorption of photocathode and the escape depth of photoelectron are discussed. The optimum thickness of transmission-mode photocathode is analysed theo-retically, and the methods for monitoring and determining the optimum thickness are proposed.更多还原