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为了打破传统单注回旋管只能产生较低功率的局限性,本文基于自主研发的PIC粒子模拟软件CHIPIC对110 GHz和220 GHz同轴腔双注回旋管进行全三维数值模拟研究.在理论分析同轴双电子注电子枪设计模型和初始参数的基础上通过CHIPIC对其进行优化设计,得到了具有横纵速度比为1.0,最大速度零散约为5.4%的高性能电子束;并将此优化后的双阳极双注电子枪取代传统回旋管数值模拟时采用的回旋发射进行110 GHz和220 GHz双注回旋管整管的数值模拟,并采用MPI四进程并行计算,最终获得了具有双频分别为110 GHz和220 GHz、模式为TE02模、平均输出功率约在70 kW、效率达到8.75%的高性能双注回旋振荡管.
In order to overcome the limitations of conventional single-injection gyroscopes that can only generate lower power, full-dimensional numerical simulation of 110 GHz and 220 GHz dual-cavity double-injection gyroscopes based on the PIC particle simulation software CHIPIC was performed in this paper. Coaxial double-electron electron gun design model and the initial parameters based on the optimized design by CHIPIC to get a high-performance electron beam with a ratio of longitudinal to longitudinal velocity of 1.0 and a maximum velocity of about 5.4% scattered; and after optimization Double anode injection electron gun to replace the conventional gyrotron launch simulation used in the 110 GHz and 220 GHz dual-injection gyroscope pipe numerical simulation and MPI quadruple parallel computing, and finally obtained a dual-band 110 GHz and 220 GHz, mode TE02 mode, with an average output power of about 70 kW and an efficiency of 8.75%.