摘要
详细介绍了用于北京自由电子激光器（ＢＦＥＬ）的多腔热阴极微波电子枪的物理设计以及模拟计算结果，给出了出束及热测实验研究结果．该微波电子枪采用双周期轴耦合驻波加速结构，由四个加速腔组成，工作在π／２模，工作频率为２８５６ＭＨｚ．该枪在设计中采用了缩短首腔以及增加腔间漂移段等设计思想，大大减小了电子反轰功率。
This paper describes the design,simulation and experiment of a multi cavity RF gun with thermionic cathode for BFEL.This RF gun consists of 1/2+3 cavities (its first half cavity is about 1/3 of a full cavity)with a axis coupling bi period standing wave accelerating structure,and works at π/2 mode,2856MHz.We shortened the length of the lst cavity and added a short drift beween the 2nd and 3rd cavities ,so that the power of back bombardment lelctrons was greatly decreased and the logitudinal properties were adjusted properly.
出处
《高能物理与核物理》
CSCD
北大核心
1997年第4期378-383,共6页
High Energy Physics and Nuclear Physics
关键词
热阴极
微波电子枪
电子反轰
纵向特性
加速器
RF gun with thermionic cathode,back bombardment,longitudinal property,current pulse shape.
