421 9 archive 11 disk0/00/00/04/21 2006-11-22 2008-07-18 09:43:35 2008-07-16 15:46:04 article show Denis.Visentin@utas.edu.au Visentin DC Denis.Visentin@utas.edu.au pub 020204 240302 240303 restricted plasma physics controlled nuclear fusion rotating magnetic field current drive field reversed configuration 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. 2003-05 published Plasma Physics and Controlled Fusion 45 5 1027-1035 10.1088/0741-3335/45/6/314 UNSPECIFIED TRUE http://dx.doi.org/10.1088/0741-3335/45/6/314 Clemente R A 1998 J. Phys. Soc. Japan 67 3450 Hugrass W N and Grimm R C 1981 J. Plasma Phys. 26 455 Hugrass W N 1982 J. Plasma Phys. 28 369 Hugrass W N 1984 Aust J. Phys. 37 509 Hugrass 2000 Plasma Phys. Control. Fusion 42 1219 Jones I R 1999 Phys. Plasmas 6 1950 Milroy R D 1999 Phys. Plasmas 6 2771 Visentin D C and Hugrass W N 2003 Plasma Phys. Control. Fusion 45 209 750 2 421 1 application/pdf en staffonly cc_utas

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