本文讨论了改进型四碱光电阴极在实用光纤面板输入窗摄像管中的制备工艺和有关问题。改进型四碱光电阴极制备工艺简便、一致性好、性能优良、具有高的灵敏度(尤其在红光区域的灵敏度较为显著)及低的热发射,应用于摄像管中使其产品成率得到提高。 This article discusses the improved four-base photocathode in the practical optical fiber panel input window camera tube preparation process and related issues. The improved tetrabasic photocathode has the advantages of simple preparation process, good consistency, excellent performance, high sensitivity (especially in the red region) and low heat emission, which is applied to the camera tube to increase the product yield .