Energy distributions and angular distributions of pulsed plasmas based on vacuum surface flashover

Abstract

In the paper characteristics of short pulsed plasmas generated by surface flashover discharge in vacuum have been studied by the Electrostatic Quadrupole Plasma analyzers (EQP). The ion energy distributions (IED) of different charge states of different metal ions are measured. The plume does't exhibits uniform expansion characteristic in the different direction. The result shows that average energy and beam intensity of ions with different charges reduce, while deviating from the axis of plasma jet.