Three-dimensional numerical calculations of Heliac equilibria are presented. The results indicate that finite-β distortions in the flux surfaces can arise because of the presence of low order rational surfaces within or near the plasma. These distortions arise as a result of non-linear beatings between the toroidal shift and the helical components of the magnetic field. Reducing the toroidal shift by increasing the number of field periods and/or the aspect ratio improves the equilibrium β-limit.
No takes yet. Share an insight, caveat, or question.
Hender et al. (1987) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: