Magnetoactive plasma heating and confinement by low frequency electromagnetic fields

The Cherenkov absorption of the waves running in the azimuthal direction by a plasma column inhomogeneous in radius is investigated. The power absorbed by plasma as well as radial fluxes of particles and heat have been found. It is shown that rotating plasma can be heated by constant inhomogeneous magnetic fields. The thermal plasma energy in this case increases due to a decrease in the rotation energy. Considered is plasma heating by two waves running in the azimuthal direction in opposition, when one wave is absorbed by ions and another one by electrons. In this case it is possible to produce plasma fluxes directed to the center of the plasma column. If these fluxes exceed the plasma outward fluxes caused by diffusion, the electromagnetic fields would not only heat but confine plasma