聚焦极
- 网络FOCUS
聚焦极-
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 .
-
因此在实际确立聚焦极参量时，应主要从聚焦极对电子束轨迹的会聚作用方面考虑，其次再考虑聚焦极对锥尖场强的影响。
The electrons focusing effect should be firstly taken into consideration in establishing focus electrode parameters , and the influence of the tip electric field should be also considered .