回旋振荡管收集极横向磁扫描系统的设计与仿真  

Design and simulation of the transverse magnetic scanning system of gyrotron oscillator collector

作　　者：李晗 杨晨 罗积润 樊宇 朱敏 郭炜 Li Han;Yang Chen;Luo Jirun;Fan Yu;Zhu Min;Guo Wei(The Key Laboratory of Science and Technology on High Power Microwave Sources and Technologies,Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100190,China;School of Electronic,Electrical and Communication Engineering,University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院空天信息创新研究院高功率微波源技术科学与技术重点实验室,北京100190 [2]中国科学院大学电子电气与通信工程学院,北京100049

出　　处：《强激光与粒子束》2021年第7期86-92,共7页High Power Laser and Particle Beams

基　　金：国家高技术发展计划项目(Y8BD140353)。

摘　　要：从降低收集极表面峰值功率和平均功率入手,设计了一种由12个横向椭圆交流线圈和2个轴向直流线圈组成的磁场扫描系统。针对140 GHz、TE28,8模、1 MW功率输出回旋振荡管收集极的设计参数,结合电磁场理论和带电粒子电磁软件仿真,获得收集极表面上电子注的峰值和平均功率密度分别不超过404.91 W/cm^(2)和244.01 W/cm^(2),以及扫描长度达到443.33 mm的扫描效果,有效地缓解了收集极功率耗散和冷却的压力。Starting from reducing the peak power and average power on the collector surface of a gyrotron oscillator,we have designed a magnetic field scanning system composed of 12 transverse elliptical AC coils and 2 longitudinal DC coils.According to the design parameters of the collector electrode of 140 GHz,TE28,8 mode,1 MW gyrotron oscillator,and combining electromagnetic field theory with particle-in-cell(PIC)simulation program,the scanning system can realize that the peak and average power density of the electron beam on the collector surface are not more than 404.91 W/cm^(2) and 244.01 W/cm^(2) respectively with a scanning length of 443.33 mm,which effectively alleviates the pressure of power dissipation and cooling of the collector.

关 键 词：回旋振荡管 收集极 横向磁场扫描 椭圆线圈 功率密度 

分 类 号：TN129[电子电信—物理电子学]