Journal Article

PreJuSER-45734

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Test particle transport in perturbed magnetic fields in tokamaks

de Rover, M.FZJ* ; Schilham, A. M. R. ; Montvai, A. ; Lopes Cardozo, N. J.

1999
American Institute of Physics [S.l.]

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Please use a persistent id in citations: http://hdl.handle.net/2128/1871  doi:10.1063/1.873516

Abstract: Numerical calculations of magnetic field line trajectories in a tokamak are used to investigate the common hypotheses that (i) field lines in a chaotic field make a Gaussian random walk and (ii) that the poloidal component of the magnetic field is uniform in regions with a chaotic magnetic field. Both hypotheses are found invalid in typical tokamak conditions. A test particle transport model in the so-called "collisionless diffusion" limit is presented, based on the field line excursions in numerical simulations. Decorrelation mechanisms that effectively enhance the transport in a stochastic field are investigated. (C) 1999 American Institute of Physics. [S1070-664X(99)02406-4].

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Institut für Plasmaphysik (IPP)

Research Program(s):

1. TEC-FOM (TEC-FOM)

Appears in the scientific report 1999
Notes: This version is available at the following Publisher URL: http://pop.aip.org

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