Diffusion of magnetic field lines in a toroidal geometry
- 1 January 1991
- journal article
- research article
- Published by AIP Publishing in Physics of Fluids B: Plasma Physics
- Vol. 3 (1) , 87-94
- https://doi.org/10.1063/1.859958
Abstract
Diffusion of stochastic magnetic field lines is studied in a toroidal geometry. General expressions for the radial diffusion coefficient are obtained in various physically important situations. The Poincaré representation of magnetic field lines is reduced to discrete mappings and the corresponding diffusion coefficients are derived. The diffusion processes taking place near the threshold to global stochasticity are also discussed.Keywords
This publication has 14 references indexed in Scilit:
- Diffusion of charged particles in turbulent magnetoplasmasPlasma Physics and Controlled Fusion, 1987
- Magnetic topology, disruptions and electron heat transportPlasma Physics and Controlled Fusion, 1986
- Stochasticity in classical Hamiltonian systems: Universal aspectsPhysics Reports, 1985
- Noncanonical Hamiltonian mechanics and its application to magnetic field line flowAnnals of Physics, 1983
- Plasma transport in stochastic magnetic fields. Part 3. Kinetics of test particle diffusionJournal of Plasma Physics, 1983
- Fourier-space paths applied to the calculation of diffusion for the Chirikov-Taylor modelPhysical Review A, 1981
- A universal instability of many-dimensional oscillator systemsPhysics Reports, 1979
- Plasma transport across a braided magnetic fieldNuclear Fusion, 1978
- Destruction of magnetic surfaces by magnetic field irregularitiesNuclear Fusion, 1966
- Electrostatic stability of gyrating electron streamsNuclear Fusion, 1966