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The relation between the Fourier transform (in the poloidal and toroidal coordinates) of the ion current density and the electric field of a Vlasov plasma in a tokamak is a matrix - the resistivity matrix - for which no approximated form appropriate for analytical and numerical problems yet exists. Here an approximated form is deduced by assuming that a Fourier component of the ion current is given, and then solving for the electric field the first moment of the Vlasov equation. The matrix elements thus obtained have a simple form suitable for the applications.

Additional information

Authors: CROCI R, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE)
Bibliographic Reference: Report: IPP 6/331 EN (1995) 9 pp.
Availability: Available from Max-Planck-Institut für Plasmaphysik, 8046 Garching bei München (DE)
Record Number: 199511225 / Last updated on: 1995-10-13
Original language: en
Available languages: en