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Control of the motion of the ions in rotating magnetic field current drive: 2. Transient analysis


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Visentin, DC and Hugrass, WN (2003) Control of the motion of the ions in rotating magnetic field current drive: 2. Transient analysis. Plasma Physics and Controlled Fusion, 45 (3). pp. 1-11.

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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.

Item Type: Article
Keywords: plasma physics controlled nuclear fusion rotating magnetic field current drive field reversed configuration
Journal or Publication Title: Plasma Physics and Controlled Fusion
Page Range: pp. 1-11
Date Deposited: 20 Nov 2006
Last Modified: 18 Nov 2014 03:12
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