Determination of Plasma Parameters as well as Electrons Distribution Function

Abstract

Abstract In this research we determined the biasing effects on the plas ma electrons distribution function and plas ma displacement in a low beta, large aspect ratio and circular cross section tokamak. Fo r this purpose, a movable biasing system was designed, constructed, and installed, and then the positive voltage applied to an electrode inserted inside the tokamak limiter and the plasma current, part icle distribution function and also the plasma horizontal displacement in the absence and presence of the biasing based on the mult ipole mo ments technique were measured. Measurements result has shown a modification of plas ma confinement by decreasing the plasma displacement

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