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A program that calculates the stability of a screw-pinch with cylindrical cross-section against small displacements is described. The equilibrium profiles of pressure and current density can be prescribed as arbitrary functions. The stability analysis is done using the energy principle (ie by calculating the change in energy associated with the displacement). The program is especially useful to get an overview of MHD stability of the screw-pinch (and therefore, to lowest order, also of the tokamak). A visualization of the equilibrium profiles as well as the perturbed flux surfaces illustrates the results.

Additional information

Authors: GAYER T, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE);ZOHM H, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE)
Bibliographic Reference: Report: IPP 1/301 DE (1996) 7pp.
Availability: Available from the Max-Planck-Institut für Plasmaphysik, 85748 Garching bei München (DE)
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