Anomalous electron heat transport driven by low frequency electromagnetic turbulence
- 28 September 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 59 (13) , 1448-1451
- https://doi.org/10.1103/physrevlett.59.1448
Abstract
We consider the anomalous electron and heat transport in a tokamak plasma. The electrons are described by the nonlinear drift-kinetic equation. We analyze transport through the averaged response function in the presence of drift-Alfvén wave turbulence. In contrast to recent findings by Terry, Diamond, and Hahm, we conclude that magnetic fluctuations lead to a substantial transport of both parallel and perpendicular energies. The latter, previously neglected, is found to be significant and of the order of the test-particle diffusion.Keywords
This publication has 4 references indexed in Scilit:
- Self-Consistency Constraints on Turbulent Magnetic Transport and Relaxation in a Collisionless PlasmaPhysical Review Letters, 1986
- Plasma transport in stochastic magnetic fields. Part 3. Kinetics of test particle diffusionJournal of Plasma Physics, 1983
- Magnetic fluctuations, ambipolarity, charge filamentation, and plasma rotation in tokamaksPhysics of Fluids, 1982
- Electron Heat Transport in a Tokamak with Destroyed Magnetic SurfacesPhysical Review Letters, 1978