title: Ion motion control in RMF current drive by means of a frequency modulated counter-RMF
creator: Visentin, DC
subject: 240302 Nuclear and Particle Physics
subject: 240303 Plasmas and Electrical Discharges
description: A numerical model of current drive is developed in an infinitely long plasma cylinder, by means of two counter-rotating magnetic fields (RMFs) where the frequency of the (+) RMF is allowed to vary.  The accessibility of steady state solutions where both RMFs penetrate into the plasma much farther than the classical skin depth, the electron fluid rotating synchronously with the (-) RMF and the ion fluid rotating synchronously with the (+) RMF, is examined.  It is demonstrated that the steady state solutions are accessible from a broader class of initial conditions by allowing the frequency of the (+) RMF to decrease linearly.  The rate of change in the frequency of the (+) RMF is required to be greater than the ion relaxation rate due to collisions with the electron fluid.
date: 2003-05
type: Article
type: PeerReviewed
format: application/pdf
identifier: http://eprints.utas.edu.au/421/1/Paper_2gv.pdf
relation: http://dx.doi.org/10.1088/0741-3335/45/6/314
identifier: Visentin, DC (2003) Ion motion control in RMF current drive by means of a frequency modulated counter-RMF. Plasma Physics and Controlled Fusion, 45 (5). pp. 1027-1035.
relation: http://eprints.utas.edu.au/421/