Non-Paraxial Plasma Equilibria in Axisymmetric Mirrors

The usage of non-paraxial elements, like a “fat” mirror cell or a divertor, is one of the techniques for stabilizing plasma in axisymmetric systems. The plasma equilibrium in such elements is studied in the paper. The calculation based on the Grad-Shafranov type equation has been done for plasma equilibrium under isotropic and anisotropic pressures in the configuration with a divertor, produced with the given external currents. The inverse variable technique is used in the problem with the fixed boundary surface. This approach is used, in particular, for calculating an equilibrium in the rippled field.