Microtearing Instabilities and Electron Transport in the NSTX Spherical Tokamak
Authors: K.L. Wong, S. Kaye, D.R. Mikkelsen, J.A. Krommes, K. Hill, R. Bell, and B. LeBlanc
Abstract:
We report a successful quantitative account of the experimentally determined electron thermal conductivity χe in a beam-heated H mode plasma by the magnetic fluctuations from microtearing instabilities. The calculated χe based on existing nonlinear theory agrees with the result from transport analysis of the experimental data. Without using any adjustable parameter, the good agreement spans the entire region where there is a steep electron temperature gradient to drive the instability.
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Published in: Physical Review Letters 99, 135003 (2007) 4 pp
doi: 10.1103/PhysRevLett.99.135003
© (2007) American Institute of Physics.
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