磁线圈将电子束聚焦成细小的点。
根据曲轴宽电子束聚焦理论，研究了一种用曲轴轨迹确定轴外点扩散分布的方法。
Based on the theory of wide electron beam focusing with curved axis, a method for determining the off-axis point spread distribution is studied using the trajectories with curved axis.
扫描电子显微镜是通过扫描聚焦在物体上的电子束来工作的。
The microscope works by scanning a focused beam of electrons across an object.
扫描电子显微镜是通过扫描聚焦在物体上的电子束来工作的。
Thee microscope works by scanning a focused beam of electrons across an object.
本文主要对椭圆带状电子束的传输稳定性和聚焦方法进行分析。
In this paper, we discussed the transmitting and focusing methods of the elliptical sheet beams.
对近年来大屏幕彩色显像管电子枪专有技术进行了讨论，系统分析了电子束形成区、主透镜、会聚透镜系统及动态聚焦方式等。
In this paper, the specialized techniques of electron gun for large screen CPTs are discussed. The beam forming region, main lens, convergence lens system and dynamic focusing method are analyzed.
这些结果可用于电子束器件、电子光学仪器和高能加速器中的聚焦或偏转或聚焦兼偏转元件的设计。
These results of this paper may be of use in designing focusing or deflection systems of electron ray devices, electron-optical instruments and high energy accelerators.
分别讨论了聚焦极电位、聚焦极孔径以及栅极电位对发射电子束的影响。
Influence of focus electrode bias, focus hole size and grid electrode bias on the emission electron beams was discussed.
最后介绍了慢正电子束流空间聚焦和时间聚焦的模拟计算以及相应的装置调试。
At last, we introduce the simulation calculation about the spatial focusing and the time focusing of the slow positron beams and the debug of the corresponding subsystems.
最后介绍了慢正电子束流空间聚焦和时间聚焦的模拟计算以及相应的装置调试。
At last, we introduce the simulation calculation about the spatial focusing and the time focusing of the slow positron beams and the debug of the corresponding subsystems.
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