Steady-state plasma current production in a discharge device with magnetic field confinement

Summary form only given. Theoretical analysis and experimental investigation have been shown that a steady-state plasma current can be driven using an uniform transverse oscillating magnetic field (OME). In this paper, the production of a steady-state toroidal driven current is experimentally investigated by a highly reproducible 7 ms pulse duration discharge in an inductively coupled plasma device, which is consisted of spherical Pyrex vessel of 28 cm inner diameter applied with a transverse oscillating magnetic field (OMF) and a perpendicularly oriented vertical magnetic field. There is an apparent linear relationship between the toroidal driven current and the strength of the applied vertical equilibrium field, and the driven current is zero in the absence of the vertical field. The reversal vertical field generated by the driven current is clearly demonstrated.