Three dimensional free boundary magnetohydrodynamic equilibria that recover saturated ideal kink/peeling structures are obtained numerically. Simulations that model the JET tokamak at fixed with a large edge bootstrap current that flattens the q-profile near the plasma boundary demonstrate that a radial parallel current density ribbon with a dominant m /n = 5/1 Fourier component at MA develops into a broadband spectrum when the toroidal current It is increased to 2.5 MA.
The spectrum of multi-region-relaxed magnetohydrodynamic modes in topologically toroidal geometry