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| Book/Report | FZJ-2018-00656 |
1976
Kernforschungsanlage Jülich, Verlag
Jülich
Please use a persistent id in citations: http://hdl.handle.net/2128/16646
Report No.: Juel-1289
Abstract: The transverse field of a racetrack Tokamak in equilibrium is calculated for surface currents and Zarge aspect ratio via the law of Biot-Savart, and its structure is discussed. The discontinuities of the curvature lead to jumps in the vertical component and to the appearance of a horizontal component. The Mercier criterion for localized interchange instabilities is evaluated near the racetrack axis and for a circular plasma cross section and the destabilizing effect of the straight sections and of an additional toroidal field divertor is investigated. The Tokamak stability region shrinks for the benefit of the higher stability regions, but these are of no practical use.
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