The Two-Dimensional Structure of the Penning Discharge in a Cylindrical Chamber with Axial Magnetic Field at a Pressure of About 1 Torr

摘要

The stationary Penning discharge has been numerically simulated using the diffusion-drift model in the pressure range p = 0.5-5 Torr at emf E of 100 and 200 V. The two-dimensional electrodynamic-discharge structure has been investigated in the calculation region between a cylindrical anode and two flat disk cathodes. Configurations of the discharge plasma and averaged azimuthal motion rates of electrons and ions have been obtained. The evolution of the plasma configuration at a change in pressure, emf, and magneticfield induction is discussed.