Neoclassical transport coefficients for ions in the core plasma of a bumpy torus are calculated analytically in the intermediate collisionality 'plateau' regime of operation, including the effects of a distortion in the ion velocity distribution function due to applied fast-wave heating. Two new transport coefficients have been identified in this regime which are proportional to the radial gradient of the magnetic field and the radial gradient of the heating-wave electric field. The effects of heating at both the fundamental and the second harmonic of the ion gyrofrequency are considered. These coefficients are incorporated into a spatially averaged fluid transport model which simulates majority ion heating. Self-consistent power balance solutions for an ion-heated bumpy torus are obtained by using these coefficients and are compared with the solutions using ion transport coefficients which ignore wave-heating modifications. A major conclusion from this work is that the introduction of fast-wave heating in a bumpy torus has no deleterious effects on the neoclassical transport of particles or energy.
Fast ion stabilization of the ion temperature gradient driven modes in the Joint European Torus hybrid-scenario plasmas: a trigger mechanism for internal transport barrier formation