全三维55GHz双阳极磁控注入式电子枪数值模拟  

Three-dimensional numerical simulation of 55 GHz double anode magnetron injection gun

作　　者：李雷雷[1] 

机构地区：[1]电子科技大学物理电子学院,成都610054

出　　处：《强激光与粒子束》2014年第12期142-146,共5页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(11175040)

摘　　要：根据绝热压缩和角动量守恒理论对55GHz双阳极磁控式注入枪进行了初始参数的设计,并利用自主研发的三维粒子模拟软件CHIPIC对其进行数值模拟,通过改变阴极半径、电子注电流、阴极磁场等参数来分析其对磁控注入式电子枪输出结果的影响。最终通过优化参数和综合因素的考虑,得到了横纵速度比为1.44、最大速度零散为5.8%的高性能电子束,能够很好满足55GHz回旋振荡管对电子束的要求。The initial design of magnetron injection gun was analyzed based on the theory of the adiabatic compression and conservation of angular momentum. A series of initial parameters of 55 GHz double anode magnetron injection gun were obtained by Matlab programming. Independent research and development of three dimensional particle simulation software CHIPIC was used to carry out numerical simulation. The obtained simulation data were analyzed and optimized. High performance electron beam was obtained with a ratio of transverse velocity to axial velocity of 1.44 and a maximum velocity spread of 5.8%. The beam could meet the requirements of 55GHz gyrotron oscillator tube.

关 键 词：双阳极磁控注入式电子枪 全三维的数值模拟 横纵速度比 速度零散 

分 类 号：O462.1[理学—电子物理学]