Compact Torus Configuration Generated by a Rotating Magnetic Field: The Rotamak

Abstract

In the rotamak concept, a rotating magnetic field is used to drive the toroidal current in a compact torus device. A rotamak device is described and initial experimental results are presented. Toroidal currents in the range 6-10 kA have been produced. Magnetic probe and power measurements, together with zero-dimensional, time-dependent plasma model calculations, indicate that a compact torus configuration has been generated for which the Ohmic power input is balanced by line radiation.