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Abstract

Basic physics of the anomalous particle pinch is explored by analyzing a new empirical scaling law by comparison with quasilinear and nonlinear theory. The scaling is found to result from the dissipation of perpendicular fluctuating electron and ion momentum. Electron-ion and charge exchange collisions are the dissipative processes of the perpendicular electron and ion dynamics, respectively. While momentum dissipation is a key process for the anomalous inward drift, the much stronger energy dissipation due to parallel electron heat conduction or electron Landau damping is responsible for diffusion. The results support a temperature gradient driven anomalous inward flux.

Additional information

Authors: BECKER G, Max-Planck-Institut fur Plasmaphysik, Garching bei Munchen (DE)
Bibliographic Reference: Report: IPP 5/89 (1999), 6pp.
Availability: Available from the Librarian at Max-Planck-Institut fur Plasmaphysik, Garching bei Munchen (DE)
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