METHOD FOR GENERATING HYPERSONIC METAL PLASMA FLOWS

摘要

FIELD: X-ray generation. SUBSTANCE: annular plasma layer with current about 1 MA is passed along conical metal surface and its boiling is excited due to effect of braking radiation and electronic heat conduction. Supersonic conical flame front shaped in the process moves towards axis and creates dense hypersonic plasma jet of metal ions at cumulative moment. Expression is found for desired discharge current depending on electrophysical constants of evaporated electrode surface. Electrode surface dimensions, including envelope, diameters, angle at apex are found from relationship between plasma layer velocities and flame evaporation. Metal plasma velocity is increased due to transfer to supersonic region of electrode surface evaporation mode and organization of oblique-angled friction. Mass of accelerated metal jet is increased as result of appreciable increase in evaporated surface temperature due to increased velocity of annular plasma layer. EFFECT: increased velocity of metal plasma and mass of accelerated metal jet. 1 dwg