Particle Diffusion by Magnetic Perturbations of Axisymmetric Geometries
- 12 November 1979
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 43 (20) , 1506-1509
- https://doi.org/10.1103/physrevlett.43.1506
Abstract
The quasilinear theory of collisionless test particle diffusion in stochastic magnetic fields is extended to include the effects of finite gyroradius, particle drifts, and magnetic trapping. Runaway-electron confinement is substantially improved relative to earlier estimates which assumed that particles exactly followed field lines. Trapped particles are not expected to be stochastic.Keywords
This publication has 3 references indexed in Scilit:
- Electron Heat Transport in a Tokamak with Destroyed Magnetic SurfacesPhysical Review Letters, 1978
- Plasma Transport in Stochastic Magnetic Fields. II: Principles and Problems of Test Electron TransportProgress of Theoretical Physics Supplement, 1978
- Quasilinear Diffusion of an Axisymmetric Toroidal PlasmaPhysics of Fluids, 1972