摘要
阐述了热电子发射的冷却效应与发叉形钨阴极形成最热点的关系 。
This paper describes relationship of the cooling effect of thermionic emission and hottest spot formed of hairpin tungten cathode.It's estemated the distance from hottest spot to cathode tip.
出处
《真空电子技术》
2001年第6期38-39,共2页
Vacuum Electronics
关键词
热电子发射
冷却效应
发叉形钨阴极
钨丝
阴极
Electron Microscope
Thermionic emission
Cool effect
Hairpin tungten cathode
Hottest spot