Experiments with Gas Puff Plasma Guns on GIT-4 generator

Presented are the results of upgraded Plasma Opening Switch study with new plasma source: Gas Puff Plasma Guns. Gas Puff Plasma Gun is a coaxial plasma accelerator with radial gas injection into gun gap. This gun produces fast, low divergence flow of pure plasma. To create the plasma we use in experiment different gases from hydrogen to krypton. The best switch characteristics were reached with hydrogen plasma. Switch voltage made up to 2 MV at POS current over 1 MA. The measurements of ion beam parameters were made using track detectors) Thompson parabola spectrometer and nuclear activation technique.