@article{5972,
  author = {M. de Rover and A.M.R. Schilham and A. Montvai and N. J. L. Cardozo},
  title = {Test particle transport in perturbed magnetic fields in tokamaks},
  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].},
  year = {1999},
  journal = {Physics of Plasmas},
  volume = {6},
  number = {6},
  pages = {2443-2451},
  month = {Jun},
  isbn = {1070-664X},
  doi = {10.1063/1.873516},
  language = {eng},
}