トーラスプラズマ中の電場とその空間構造を決定する物理機構

概要

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Radial structure of plasma rotation and radial electric field are experimentally studied in tokamak and heliotron/torsatron and stellarator devices. The perpendicular and parallel viscosities are measured. The parallel viscosity, which is dominant in heliotron/torsatron and stellarator devices, is found to be neoclassical, while the perpendicular viscosity, which is dominant in the toroidal rotation in tokamak, is anomalous. Even without external momentum input, plasma rotation and radial electric field exist both in tokamak and heliotron/torsatron. The profiles of radial electric field observed do not agree with the theoretical prediction, which is mainly due to the existence of perpendicular viscosity. The shear of the radial electric field improves particle and heat transport both in bulk and edge plasma regime.
社団法人プラズマ・核融合学会の論文
1994-05-25