加速管中离子运动轨迹的计算
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摘要: 根据静电透镜的聚焦规律，采用微元模型进行积分，导出了加速管中离子的运动轨迹，并根据轨迹特性对加速管的聚焦效应进行了讨论。结果显示，加速管对离子轨迹的聚焦效应受离子入射角和电极粗细的影响很大，但几乎与其电极数量无关。Abstract: An accelerating tube is an electrostatic lens system. This paper has deduced the ion trajectory in an accelerating tube by integrating the one in a unit electrostatic lens. The results show that tube focusing effect on ion trajectory is greatly affected by ion incident angle and the electrode dimension but almost independent of the number of the electrodes.
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Key words:
- electrostatic lens /
- accelerating tube /
- ion trajectory
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