驻波加速管中的电子反轰现象  

THE ELECTRON BACK BOMBARDMENT PHENOMENON IN THE STANDING WAVE ACCELERATING TUBES

作　　者：顾本广[1] 林小奇[1] 周平[1] 

机构地区：[1]北京医疗器械研究所

出　　处：《强激光与粒子束》1991年第3期286-296,共11页High Power Laser and Particle Beams

摘　　要：在以半腔为首腔的边耦合驻波加速管中观察到了电子反轰现象,由于电子反轰的结果,导致电于枪发射电流非正常增长。本文从纵向运动方程出发,用相轨道方法分析了驻波加速管中的电子反轰运动,并计算了不同电场分布、不同电场幅值及不同注入电压对电子反轰的影响。The electron back bombardment phenomenon, which results in anomalous increase of gun current emission, has been observed in a series of our side coupled standing wave accelerating tubes. In this paper, the electron back bombardment phenomenon is analysed using phase orbit equations deduced from the longitudinal motion equations for SW accelerating tubes. The motion of back-bombarding electrons in the first accelerating cavity are calculated under different conditions. The influences of various factors such as electric field distribution, amplitude of electric field and injection voltage are discussed, respectively.

关 键 词：驻波加速管 电子反轰 

分 类 号：TL503.2[核科学技术—核技术及应用]