415 10 archive 11 disk0/00/00/04/15 2006-11-20 2008-07-18 09:43:27 2008-07-16 15:45:57 article show Denis.Visentin@utas.edu.au Visentin DC Denis.Visentin@utas.edu.au Hugrass WN pub 020204 240302 240303 restricted plasma physics controlled nuclear fusion rotating magnetic field current drive field reversed configuration The time-dependent equations describing current drive in an infinitely long plasma cylinder by means of two counter-rotating magnetic fields are solved numerically neglecting the second and higher harmonics. The accessibility of steady state solutions where both rotating magnetic fields (RMFs) penetrate into the plasma much farther than the classical skin depth, the electrons being entrained by the (-) RMF and the ions by the (+) RMF, is demonstrated. The slip of the ions with respect to the (+) RMF is required to be initially negative, with a suitable radial profile. It is also shown that the use of two counter-rotating RMFs is possible only when the frequency of the (+) RMF is larger than the electron-ion momentum-transfer collision frequency. 2003-03 published Plasma Physics and Controlled Fusion 45 3 1-11 UNSPECIFIED TRUE http://www.stacks.iop.org/PPCF/45/209 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 W N 1998 Aust J. Phys. 51 859. Hugrass 2000 Plasma Phys. Control. Fusion 42 1219. Jones I R 1999 Phys. Plasmas 6 1950. Milroy R D 1999 Phys. Plasmas 6 2771. 738 2 415 1 application/pdf en staffonly cc_utas

Paper_1.pdf

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