94GHz渐变复合腔二次谐波回旋管的设计  

Design of 94 GHz second-harmonic complex cavity gyrotron with gradual transition

作　　者：于新华[1] 蒙林[1] 牛新建[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》2010年第9期2111-2114,共4页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(60971034)

摘　　要：根据注-波互作用自洽非线性理论,编写了分析渐变复合腔的计算程序,通过该程序,获得了工作模式对为TE021-TE031的注-波互作用腔体和相关电磁参量的优化结果。应用粒子模拟软件对设计的复合腔进行了模拟,模拟与数值计算结果基本一致。根据计算结果研制了二次谐波回旋管,在加速电压57.5kV、电流10A下,测得其工作频率为94GHz,输出模式为TE01,峰值功率和效率分别为156kW和27.1%。计算、模拟和实验结果基本一致。A code used to analyze beam-wave interaction in complex cavity is written based on the self-consistent nonlinear beam-wave interaction theory. The code is used to optimize cavity and electromagnetic parameters of a gradual transition complex cavity with second-harmonic waves of TE021-TE031 mode group. Simulations using the software Magic show a good agreement with calculations. Based on the calculations and simulations,a second-harmonics complex-cavity gyrotron is developed. Experiments show that the gyrotron delivers steadily peak power of 156 kW with an efficiency of 27.1% and output of TE01 mode at frequency 94 GHz,voltage 57.5 kV and current 10 A. Data of calculations and simulations are consistent with those from the experiments.

关 键 词：渐变复合腔 二次谐波 回旋管 高功率 高效率 

分 类 号：TN129[电子电信—物理电子学]