Development of the high repetition frequency non-equilibrium plasma source based on solid-state device

An all solid-state pulse power source based on the novel photoconductive semiconductor switches (PCSS) and the solid-state pulse forming line (PFL)was designed and tested. The Si-PCSS with mirror cavity combined quantum-trap structure and the solid-state PFLs which were made of ferroelectric ceramic-glass composition and high frequency ceramic with curve electrode structure were proposed. Then, A compact 20 stages Marx generator was developed. Combined with the well designed charging system, circulatory cooling system and laser triggering system, the durative time of the prepared generator which works with output voltage 113kV, pulse width 50ns, and repetition frequency 1kHz， is more than 6 minutes. As it work with pulse width several nanoseconds，it can work continuously for more than 1 hour without any performance degradation。

And then, a plasma gun was excited by the high frequency all solid-state pulsed power source,the characteristics of the non-non-equilibrium plasma was measured. The distribution of the plasma in the jet was improved significantly.