Abstract:

Mechanism for producing cusp magnetic field is studied. The physical model of cusp magnetic field has been set up with the amendment of the Moster-Molnar model. Based on the cusp magnetic field theory analysis and numerical simulation, factors that influence the cusp magnetic field design have been discussed. The Lagrangian formulation is used to solve the electron trajectories in some simple magnet ic cusp configurations. The relationship between the cusp magnetic field and the large orbit gyrotron hollow cusp electron gun has been explored, and some general conclusions have been presented on the prospects of generation and improvement of the big orbit cusp electron gun.

Key words: Electron gun, Large orbit gyrotron cusp electron gun, Cusp magnetic field

摘要：

研究了会切磁场产生的机理。通过对Moster-Molnar 模型的探讨, 建立了会切磁场的物理模型。在会切磁场理论分析和数值模拟基础上, 探讨了影响会切磁场设计的因数; 利用拉格朗日公式求解了会切磁场中电子运动轨迹。探讨了会切磁场与大回旋空心会切电子枪的关系, 得到了改进会切电子枪性能的一些一般性结论。

关键词: 电子枪, 大回旋会切电子枪, 会切磁场