强激光与粒子束, 2014, 26 (12): 123003, 网络出版: 2015-01-08
全三维55GHz双阳极磁控注入式电子枪数值模拟
Three-dimensional numerical simulation of 55 GHz double anode magnetron injection gun
双阳极磁控注入式电子枪 全三维的数值模拟 横纵速度比 速度零散 double anode magnetron injection gun 3D numerical simulation ratio of transverse velocity to axial velocity velocity spread
摘要
根据绝热压缩和角动量守恒理论对55 GHz双阳极磁控式注入枪进行了初始参数的设计,并利用自主研发的三维粒子模拟软件CHIPIC对其进行数值模拟,通过改变阴极半径、电子注电流、阴极磁场等参数来分析其对磁控注入式电子枪输出结果的影响。最终通过优化参数和综合因素的考虑,得到了横纵速度比为1.44、最大速度零散为5.8%的高性能电子束,能够很好满足55 GHz回旋振荡管对电子束的要求。
Abstract
The initial design of magnetron injection gun was analyzed based on the theory of the adiabatic compression and conservation of angular momentum. A series of initial parameters of 55 GHz double anode magnetron injection gun were obtained by Matlab programming. Independent research and development of three-dimensional particle simulation software CHIPIC was used to carry out numerical simulation. The obtained simulation data were analyzed and optimized. High-performance electron beam was obtained with a ratio of transverse velocity to axial velocity of 1.44 and a maximum velocity spread of 5.8%. The beam could meet the requirements of 55 GHz gyrotron oscillator tube.
李雷雷. 全三维55GHz双阳极磁控注入式电子枪数值模拟[J]. 强激光与粒子束, 2014, 26(12): 123003. Li Leilei. Three-dimensional numerical simulation of 55 GHz double anode magnetron injection gun[J]. High Power Laser and Particle Beams, 2014, 26(12): 123003.