多注周期永磁聚焦系统横向磁场的研究  

Study on the Transverse Magnetic Fields of Multi-Beam PPM Focusing System

作　　者：吴初锚[1] 吕国强[1] 杨军[2] 

机构地区：[1]合肥工业大学仪器与光电工程学院,安徽合肥230009 [2]合肥工业大学光电技术研究院,安徽合肥230009

出　　处：《真空电子技术》2008年第1期1-4,共4页Vacuum Electronics

摘　　要：从理论上对多注行波管周期永磁聚焦系统横向磁场的性质以及对电子注聚焦的影响进行了讨论,并借助仿真手段分析了一五注耦合腔周期永磁聚焦系统各电子注通道轴内的横向磁场分布规律,讨论耦合槽结构对横向磁场分布的影响,并对横向磁场造成的电子注偏移进行了粒子模拟。The nature of the transverse magnetic fields of multi-beam PPM focusing system and its effects on beam focusing were discussed in theory.The PPM focusing system for a five-beam traveling- wave tube was simulated,and the transverse magnetic fields and the effects of coupling slot were analyzed. Beam displacement caused by transverse magnetic fields was illustrated by particle-in-cell simulation.

关 键 词：多注行波管 横向磁场 周期永磁聚焦系统 粒子模拟 

分 类 号：TN124[电子电信—物理电子学]