Effects of the Stochasticity on Transport Properties in High-β LHD
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Effects of the stochasticity of magnetic field lines on transport properties are investigated. In a high-β LHD plasma, the structure of field lines in the peripheral region becomes stochastic by finite-β effects but the finite pressure gradient exists in that region. The radial diffusion coefficient and the Kolmogorov length of stochastic field lines are estimated. In the stochastic region, the radial diffusion of stochastic field lines becomes large and the Kolmogorov length becomes short due to increasing β. In that region, the radial heat transport becomes large due to the stochasticity of field lines.
- Plasma and Fusion Research
Plasma and Fusion Research (4), 036-036, 2009
The Japan Society of Plasma Science and Nuclear Fusion Research