GIT-4 experiments with plasma opening switch of RFNC-VNIITF design

This report presents the experiments results carried out on the GIT-4 installation with the plasma opening switch designed in RFNC-VNIITF. Flashboards type plasma source is used for plasma injection in the switch. By the switch opening, the stored energy is transferred to the inductive load, or to the electron diode. By the conduction switch current ~1 MA, the load voltage reaches ~1 MV. The energy, dissipated in the diode with the impedance ~3 Ohm, reaches ~100 kJ. In this report, it is also discussed diode operation variations at the accelerating gap decreasing.