Abstract A pulse electron beam source of vacuum arc plasma cathode with electrostatic focusing system based on radial discharge was proposed and designed in this paper. With the consideration of the stability of vacuum arc plasma cathode with axial discharge, the structure was improved for vacuum arc plasma cathode with radial discharge. Because the surface is narrow and small, high-speed movement of cathode spot occurred only over annular cathode surface whose diameter was less than 2mm, thereby the electron emission efficiency was stable. Then with the emission cathode, pulse electron beam source of vacuum arc plasma cathode with radial discharge was designed. It is a magnetic field source-free electron beam source, consisting of plasma cathode and electrostatic focusing system. In the experiments, a faraday cup was used to measure the parameters of electron beam. The results show that the electron source is stable.
Tian Wei,Gai Fei,Zhang Junmin等. Experiment Research on Pulse Electron Beam of Plasma Cathode with Radial Discharge[J]. Transactions of China Electrotechnical Society, 2019, 34(6): 1338-1344.
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2019, Vol. 34 
