Pulsed NS Discharge Self-Focusing in a Strong Magnetic Field

摘要

Numerical characterization of nanosecond pulsed discharges has been conducted in a strong magnetic field environment. Streamer discharge development and plasma generation in pure CO_2 was analyzed when magnetic field was directed along the axis of the discharge cell. Numerical simulations were based of a two-dimensional fluid model. It is shown that strong magnetic field affect dramatically on the plasma formation. The NS streamer diameter decreases significantly, plasma density increases. Calculations were carried out for different magnetic field values for fixed CO_2 pressure P = 50 Torr and fixed NS pulse voltage U = 20 kV.