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(TH/P3-06) Nonlinear Drift Wave Instability due to Zonal Flows

P.R. Moestam1), J. Weiland1)
 
1) Chalmers University of Technology, Göteborg, Sweden and EURATOM-VR Association

Abstract.  A nonlinear instability due to zonal flows and magnetic islands has been found. The instability has the character of a dissipative drift instability due to an anomalous resistivity. The anomalous resistivity is typically two orders of magnitude larger than the classical at the edge.

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IAEA 2003