Abstract Residual zonal flow level is calculated for tokamak plasmas in the near-separatrix region of a diverted tokamak. A recently developed method is used to construct an analytic divertor tokamak configuration. It is shown that the residual zonal flow level becomes smaller but still keeps finite near the separatrix because the neoclassical polarisation mostly due to the trapped particles goes larger in this region.
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10575037).
Cite this article:
Shi Bing-Ren(石秉仁) Tokamak residual zonal flow level in near-separatrix region 2010 Chin. Phys. B 19 095201
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