0.65 THz回旋管双阳极电子枪的模拟与设计  

Simulation and Design of a Double-Anode Electron Gun for 0.65 THz Gyrotrons

作　　者：黄文晋 王志鹏[1] 张天钟[1] 陈儒泰 罗金 卢彦伟 喻胜[1] HUANG Wen-jin;WANG Zhi-peng;ZHANG Tian-zhong;CHEN Ru-tai;LUO Jin;LU Yan-wei;YU Sheng(Terahertz Science and Technology Research Center,School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 610054,China)

机构地区：[1]电子科技大学电子科学与工程学院太赫兹科学技术中心,四川成都610054

出　　处：《真空电子技术》2018年第5期8-12,共5页Vacuum Electronics

摘　　要：针对0.65THz二次谐波回旋振荡管的需求,对双阳极电子枪结构参量进行PIC模拟仿真。由于0.65THz二次谐波回旋管高频结构尺寸非常小,电子注与波互作用的引导中心半径更小,若要实现太赫兹器件的高功率、高效率输出,要求电子注速度离散足够小,层流性较好,需要对双阳极电子枪结构进行优化。经过大量模拟优化,得到了较好的结果,其电子注横纵速度比为1.28,速度离散为7.6%。Based on the requirements of the 0.65 THz secondharmonicgyrotron, the parameters of double-anode magnetron injection gun （MIG） are simulated and optimized by PIC code. Because the 0.65THz secondharmonicgyrotron has a very small high-frequency structure and a smaller guiding center radius of electron beam-wave interaction, the electron beam velocity spread should be small enough to achieve high-power and high-efficiency output. Based on sufficient simulation and optimization, a double-anode electron gun with velocity spread of 7.6% and velocity ratio of 1.28is obtained.

关 键 词：0.65THz回旋管 双阳极磁控注入电子枪 速度比 速度离散 

分 类 号：TN129[电子电信—物理电子学]