Relativistic Quasilinear Description of Three-Dimensional Diffusion

Wang, Z. T.; Long, Y. X.; Dong, J. Q.

doi:https://doi.org/10.3814/2010/640826

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Research Article | Open Access

Volume 2010 | Article ID 640826 | https://doi.org/10.3814/2010/640826

Relativistic Quasilinear Description of Three-Dimensional Diffusion

Z. T. Wang,¹Y. X. Long,¹and J. Q. Dong¹

Received28 Aug 2009

Revised02 Nov 2009

Accepted05 Nov 2009

Published30 Dec 2009

Abstract

Quasilinear theory is developed by using canonical variables for a relativistic plasma. It is self-consistent, including momentum, pitch angle, and spatial diffusions. By assuming the wave field as a superposition of known toroidal and poloidal Fourier modes, the quasilinear diffusion coefficients are written in a form which can be directly evaluated using the output of a spectral full-wave solver of Maxwell equations in toroidal plasmas. The formalism is special for tokamas and, therefore, simple and suitable for simulations of cyclotron heating, current drive, and radio-frequency wave-induced radial transport in ITER.

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Copyright

Copyright © 2010 Z. T. Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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