For this purpose, several kinds of laser-driven photocathodes, and some thermionic cathodes and field emission cathodes are applied.
为此，人们采用各种类型的激光驱动光电阴极、一些热阴极和场致发射阴极作为电子源。
2
Emission spectroscopic techniques are employed to study the loss of thermionicemission material barium from the cathode of a T12 fluorescent lamp.
应用发射光谱技术研究了T12荧光灯阴极电子发射材料钡的损失。
3
Finally, our simulation result shows that conventional SOI SBSD-MOSFET can effectively suppress thermionicemission leakage current, but it still can not suppress tunneling leakage current.