"one size fits all" analytic solutions to the Grad-Shafranov equation

Antoine J. Cerfon, Jeffrey P. Freidberg

Research output: Contribution to journalArticlepeer-review


An extended analytic solution to the Grad-Shafranov equation using Solov'ev profiles is presented. The solution describes standard tokamaks, spherical tokamaks, spheromaks, and field reversed configurations. It allows arbitrary aspect ratio, elongation, and triangularity as well as a plasma surface that can be smooth or possess a double or single null divertor X-point. The solution can also be used to evaluate the equilibrium beta limit in a tokamak and spherical tokamak in which a separatrix moves onto the inner surface of the plasma.

Original languageEnglish (US)
Article number032502
JournalPhysics of Plasmas
Issue number3
StatePublished - 2010

ASJC Scopus subject areas

  • Condensed Matter Physics


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