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对运动方程法求解像管中的电子轨迹进行了研究,先利用64点拉格朗日插值公式和球面阴极外插求出空间任一点的电位,然后用变步长龙格 库塔法求出电子运动的轨迹。通过计算同心球系统的典型轨迹,与理论值比较,其精度达到10-3。
The equation of motion equation was solved for the electron trajectory in the image tube. The potential of any point in the space was first calculated by 64 points Lagrange interpolation formula and spherical cathode extrapolation, and then the electron was obtained by the variable step-length Runge-Kutta Trajectory. By calculating the typical trajectory of the concentric sphere system, the accuracy is 10-3 compared with the theoretical value.