On the influence of a radial electric field on ripple-induced stochastic diffusion in tokamaks
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.
- Publication:
-
Journal of Plasma Physics
- Pub Date:
- February 2005
- DOI:
- 10.1017/S0022377804003149
- Bibcode:
- 2005JPlPh..71...81A