It is shown that the internal kink mode is no longer marginally stable within the kinkmode order in a plasma with noncircular cross section. For a step current density with a small ellipticity, the internal kink mode becomes unstable as soon as the rotational transform exceeds 2π close to the magnetic axis.
No takes yet. Share an insight, caveat, or question.
Guy Laval (1975) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: