Operation models and waveform shaping of primary test stand

A high power pulse device called primary test stand (PTS) is under development, which contains 24 modules with identical components, and with the design parameters of 8 MA to 10 MA current and the frontal rise time of 90 ns. For laser triggered gas switches on PTS can be independently triggered by 12 lasers, and by shorting out the water switches, it is possible to operate PTS in three different modes, i. e. the short-pulse high current mode, long-pulse high current mode, and waveform shaping mode for isentropic compression experiments. The load currents are estimated by a full-circuit model of PTS. These predicted currents are about 10 MA for the same equivalent inductance load in three different modes. In the short-pulse mode PTS will be able to provide currents up to 10 MA with risetime of 100 ns. In the long-pulse mode PTS will be able to provide currents up to 10 MA with risetime of 200 ns. Tailored waveform output will also be possible on PTS, with risetime up to 400 ns. The waveform shaping mode is studied by the settings of triggered manners of laser triggered gas switches and operation models of water switches.