Analytic study on low-n external ideal infernal modes in tokamaks with large edge pressure gradients

The problem of pressure driven infernal type perturbations near the plasma edge is addressed analytically for a circular limited tokamak configuration which presents an edge flattened safety factor. The plasma is separated from a metallic wall, either ideally conducting or resistive, by a vacuum region. The dispersion relation for such types of instabilities is derived and discussed for two classes of equilibrium profiles for pressure and mass density.


Published in:
Journal of Plasma Physics, 84, 2, 745840201
Year:
2018
Laboratories:




 Record created 2019-03-11, last modified 2019-05-10

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