PPPL-3960 is available in pdf format (900 KB).

Analytic, High-beta Solutions of the Helical Grad-Shafranov Equation

Authors: D.R. Smith and A.H. Reiman

Date of PPPL Report: May 2004

Published in: Phys of Plas 11:8 (August 2004) 3752-3757

We present analytic, high-beta [β ~ O(1)] helical equilibrium solutions for a class of helical axis configurations having large helical aspect ratio, with the helix assumed to be tightly wound. The solutions develop a narrow boundary layer of strongly compressed flux, similar to that previously found in high-beta tokamak equilibrium solutions. The boundary layer is associated with a strong localized current which prevents the equilibrium from having zero net current.