Prepulse effects on the characteristics of relativistic magnetron

Based on the origin of prepulse, the prepulse effects on the relativistic magnetorn were analysed. The prepulse effects mainly include three aspects: making the voltage waveform changed, advancing the production of plasma, and enhancing the mode competition. Those effects will finally limit the characteristics of the relativistic magnetron. Linking with the experiments, the relations of those factors were discussed in detail.