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出 处:《计算物理》1993年第3期257-265,共9页Chinese Journal of Computational Physics
摘 要:论述了磁聚焦静电偏转(MS)型和静电聚焦静电偏转(SS)型聚焦偏转系统设计中有关电子轨迹的计算方法,给出了复合场中的运动方程和数值求解方法,并用矩阵方法对28项电位解析函数偏导作了优化处理。史中还给出了螺线管轴上和轴外磁通量密度分量及其一阶导数的矩阵式。讨论了电子轨迹在r=0的计算式。最后给出了计算实例。In the previnus paper, the field calculatin for focus deflection system of a cam-era tube with electrostatic deflection yokes were deseribed. Now that the potential field is known we can treat the trajectories described by the electrons in this field. The electron trajectory calcula-tion in the focus-deflection system with the electrostatic deflection differs from usual trial solution determined by the discrete methods in the rotationally system field. Because poteotial fuoction of the focus-deflection field determined by the analytic method are analytic fuoctions of the variations r, 00000000, z, in the tracing process of the electron trajectories the potential and it's deriva-tives at an arbitrary point may be given by the aoalytic fuoctions.The purpose of the paper is to give the method of solving geoeral equation of motion for an electron in mixed field which produces a combined electromagnetic focus field and the electrostatic deflection field.
分 类 号:TN142[电子电信—物理电子学]
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