Weak ionized plasma rotation by a rotating electromagnetic field

Partialy ionized plasma rotated by a high-frequency field and confined by walls of a cylinder has been theoretically investigated. The stationary velocity profiles of electrons, ions and atoms have been found with taking account of viscosity. The electron component is set in rotation by nonlinear interaction of a field with plasma. Heavy particles are carried away by the electron wind. It has been shown that in a sufficiently dense plasma, in which the ranges of electrons, ions and atoms are small against the cylinder radius, the rotation is effeciently transferred to ions and atoms. In this case the neutral component only slightly falls behind the ion one. The density distribution over radius have been found. Rotation velocities of the order of or higher than the thermal ion one and noticeable drops of density from the rotation axis to periphery have been achieved at a relatively low current in the external circuit. This makes it possible to apply this system for technical purposes, for instance, for separating isotopes, for removing the impurities from thermonuclear plasma in the systems of the tokamak type