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On the influence of a radial electric field on ripple-induced stochastic diffusion in tokamaks

Published online by Cambridge University Press:  13 January 2005

S. ASSAS  and
L.-G. ERIKSSON
S. ASSAS
Affiliation:
Association EURATOM-CEA, CEA/DSM/DRFC, CEA-Cadarache, F-13108 St. Paul lez Durance, France (lars-goran.eriksson@cea.fr)
L.-G. ERIKSSON
Affiliation:
Association EURATOM-CEA, CEA/DSM/DRFC, CEA-Cadarache, F-13108 St. Paul lez Durance, France (lars-goran.eriksson@cea.fr)
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Abstract

Strong plasma rotation is an important feature in many high-performance fusion plasmas, especially in plasmas with internal transport barriers (ITBs). An analysis of the impact of plasma rotation, or more specifically of a radial electric field, on the ripple-induced stochastic diffusion of energetic ions is presented. In particular, the influence of a radial electric field on the threshold for stochastic motion and on the diffusion path in real space is investigated.

Type
Papers
Information
Journal of Plasma Physics , Volume 71 , Issue 1 , February 2005 , pp. 81 - 96
Copyright
2005 Cambridge University Press

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