The tokamak plasma position and shape were estimated for the first time in TOKASTAR-2 based on external magnetic measurement using filament current approximation method. Data of a magnetic probe array… Click to show full abstract
The tokamak plasma position and shape were estimated for the first time in TOKASTAR-2 based on external magnetic measurement using filament current approximation method. Data of a magnetic probe array and flux loops was used. Effects of the helical field on the tokamak plasma radial position were investigated. The oscillation of the radial position and the outer displacement of the plasma under the weak vertical field were suppressed by the helical field.
               
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