An experimental instrument is set up to observe the energy distribution of electrons (mainly secondary electrons) on the anode screen in the field emission.
我们搭建了一套实验装置，用来观察场发射中到达阳极屏上的电子(主要是二次电子)的能量分布。
It is discovered that driven by the super strong laser field, the oscillation of electrons, due to their relativistic motion, will generate harmonic emission.
研究发现，在超强激光作用下电子运动的相对论效应可导致高农谐波辐射。
The electron source may emit electrons either via field emission or thermionic emission.
该电子源可经由场发射或热离子发射来发射电子。
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