Preliminary Results of Cone Z-Pinch Device with 5 kJ

摘要

The Cone Z-Pinch Experiment with 5 kJ is designed, constructed and operated. The electric discharge takes place between an upper ring electrode and a lower pin electrode creating plasma sheath in shape of cone. The preliminary experimental results using Helium gas in discharge show that the discharge period is 35 μs, the total system inductance is 287 nH, and the total system resistance is 15 mΩ. The breakdown curve shows a minimum breakdown value at 0.2 torr pressure. The cone plasma is confined by electromagnetic force and plasma inductance has its maximum value at the pinch. The plasma current has a maximum value of 53 kA at the axis of the discharge tube. The experimental results showed that a time of 2.1 us at least is required for the pinch to occur and that both the pinch time and the duration time decrease with increasing the charging voltage.