Effect of Radial Electric Field Inhomogeneity on Anomalous Cross Field Plasma Flux in Heliotron/Torsatron

概要

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Anornalous cross field plasma fluxes induced by the electric field fluctuations has been evaluatedin a rotating plasrna with shear flow in a helical system. The anomalous ton flux is evaluatedby the contribution frorrx ion curvature drift resonance continuum in the test particle model.The radial electric field induces the Doppler frequency shift which disappears in the frequencyintegrated anomalous flux. The inhornogeneity of the electric field (shear flow effect), however,induces a new force term in the flux. The curvattrre drift resonance also induces a new force term4B)' / (713) which, however, did not make large influence in the ion flux in the CHS configuration.The shear flow term in the flux combined with the electric field in neoclassical flux reduces to afirst order differential equation which governs the radial profile of the electric field. Numericalresults indicate that the shear flow effect is inaportant for the anomalous cross field flux and fordeterrnination of the radial electric field particular'ly in the peripheral region.
社団法人日本物理学会の論文
1996-05-15