DYNAMICS OF PLASMA JETS AND ELECTRODE SPOTS IN THE PULSED SOURCE OF A HIGH-PURITY PLASMA OBTAINED FROM A DIELECTRIC MATERIAL AT ATMOSPHERIC PRESSURE

摘要

The results of investigation of the distinctive features of the dynamics of outflow of plasma jets and of formation of electrode spots in the source of a high-purity plasma obtained from a dielectric material at atmospheric pressure by analogy with a capillary discharge have been given. It has been established that the geometry of the electrode-spot distribution is dependent on the height of the dielectric projection above the electrodes, cathode spots appear in the negative half-cycle of the current, the outflowing plasma jet is of an intricate shock-wave and intermittent structure, and the space-time distribution of the shock is determined by the energy stored in the storage system.