强激光与粒子束2009，Vol.21Issue(7)：1063-1068,6.
紧凑型自聚束微波电子枪设计研究
Design of compact self-bunching RF gun
摘要
Abstract
Recently,great attention has been paid to short electron pulses because of the requirement for free electron laser(FEL) projects.To generate a 0.2 nC,5 ps,2 MeV electron bunch with a normalized emittance better than 50 mm·mrad without compensation coil,a self-bunching RF gun with independently tunable cells (ITC) is employed,which consists of two independent cavities to compress short pulses.The first cell compresses the beam from a high-voltage DC gun and the second is an acceleration cell.The two cells can be power fed independently,and beams with excellent characteristics can be obtained by choosing appropriate feeding power and phase for the two cells.This paper describes the design of an external injecting ITC RF gun (DC-ITC-RF gun) and presents simulation results of beam parameters as well as RF measurement.Experimental results show that the designed two-cell structure achieves the target parameter values.关键词
自聚束/独立调谐微波电子枪/能散/拉珠Key words
self-bunching/independently tunable cells RF gun/energy spread/bead-drop分类
能源科技引用本文复制引用
庞健,裴元吉,金凯,冯光耀,黄贵荣,贾大春..紧凑型自聚束微波电子枪设计研究[J].强激光与粒子束,2009,21(7):1063-1068,6.基金项目
National high technology development project （）
