An electron gun code is used to simulate the electron trajectory, the influence of electrode shape, magnet field, electron trajectory on the electron beam have been studied.
利用电子枪模拟程序对电子轨迹进行模拟计算，研究了电极形状、磁场分布以及电子轨迹与电子注参量的影响，为磁控注入电子枪的设计提供了理论依据。
The cathode of the gun may be partially shielded magnetically. The paraxial-ray equation for describing the electron trajectory in the accelerating region is solved in closed form.
阴极处磁场可以具有任意屏蔽程度，得到了在加速场内描写电子轨迹的傍轴方程的解析解。
But when the external fields are very strong, the trajectory of an electron begins to bifurcate, thus chaos appears.
但是，当电场和磁场很强时，电子的运动轨道开始分岔，运动出现混沌。
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