Acknowledgements

Besides, by analyzing the PD sequence, the interaction between adjacent discharges is obtained. Figure 8 shows the temporal evolution of surface charges and electric field within the cavity of first eight discharges. The first PD does not take place immediately after the

Figure 8. The first eight discharges during the PD sequence: (a) discharge time and magnitude, (b) surface charge

decaying process, and (c) evolution of electric field within the cavity.

122 Plasma Science and Technology - Basic Fundamentals and Modern Applications

We would like to thank Prof. George Chen from the University of Southampton for the inspiring discussion and appreciate the financial support from the National Natural Science Foundation of China (51607128).
