轴向加速管的数值模拟

杨郁林; 丁武

强激光与粒子束, 2004, 16 (1): 85, 网络出版: 2006-05-15

轴向加速管的数值模拟

Numerical simulation of the axial acceletron

论文大纲

杨郁林丁武

作者单位

北京应用物理与计算数学研究所,强辐射实验室,北京,100088

轴向加速管理想群聚可调频高功率微波脉冲 PIC方法 Axial acceletron Ideal bunching HPM pulse with tunable frequency PIC method

摘要

用二维全电磁数值模拟方法研究了轴向加速管,虽然没有实现理想群聚,但通过加一个中间腔,大大提高了前两阶谐波电流分量,其中一阶谐波电流调制系数达到了140%,二阶谐波电流调制系数达到了68%.通过对提取腔的设计,可以选择地输出不同的频率,其中一次谐波频率为2.2GHz,输出功率1.25GW,效率9.33%;二次谐波频率为4.4GHz,输出功率0.48GW,效率3.6%.

Abstract

A high power and alterable frequency axial acceletron is studied in this paper. By adding the middle cavity, the RF at the cathode surface is increased and the current modulation coefficient is enhanced, the first order current modulation coefficient is 140% and the second is 68%. By adjusting the output cavity, in terms of the two-dimensional fully electron-magnetic partical-in-cell(PIC) simulation, the output power of 1.25GW at 2.2GHz and 480MW at 4.4GHz have been obtained.

参考文献

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杨郁林, 丁武. 轴向加速管的数值模拟[J]. 强激光与粒子束, 2004, 16(1): 85. YANG Yu-lin, DING Wu. Numerical simulation of the axial acceletron[J]. High Power Laser and Particle Beams, 2004, 16(1): 85.

轴向加速管的数值模拟

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