行波管中聚焦磁场对互作用影响的研究  

Research of the Focusing Magnetic's Impact on the Interaction in TWT

作　　者：余金清[1] 胡玉禄[1] 李斌[1] 

机构地区：[1]电子科技大学大功率微波电真空器件技术国防科技重点实验室,四川成都610054

出　　处：《真空电子技术》2011年第1期21-25,共5页Vacuum Electronics

摘　　要：本文应用MAGIC模拟软件,研究了周期永磁聚焦螺旋线行波管中聚焦磁场的分布对电子轨迹的影响。分别模拟了电子的静态轨迹和互作用轨迹,通过对电子轨迹的分析,设计了一种渐变的磁场分布。应用MAGIC模拟软件对这种渐变磁场进行模拟仿真,结果显示这种渐变磁场可以有效抑制电子散焦,并通过仿真结果分析了如何设置这种新型磁场。MAGIC simulation software has been used to study the effect of period permanent magnetic（PPM） field on electron trajectories.Static trajectories and interaction trajectories have been simulated.A magnetic field of gradual change amplitude has been designed by analyzing the electron trajectories.such a gradient magnetic field has been simulated by MAGIC.The result reveales that the gradient magnetic field can inhibit the electron defocusing.How to set this new type of magnetic field has been analyzed by studying the result of simulation.

关 键 词：MAGIC 周期永磁聚焦磁场 电子轨迹 散焦 新型磁场 

分 类 号：TN124[电子电信—物理电子学]