Analysis of magnetic field data from Rotamak VI

Abstract

Magnetic field data from an array of points within the Rotamak VI at the Flinders University of South Australia are analysed using a new algorithm to integrate the experimentally measured gradient of a function of two variables. Evaluation of the poloidal flux function using both components of the magnetic field reveals two closed flux regions one inside and one outside the radius of the rotating magnetic field (RMF) coils. The smoothed toroidal current density features a small region of reversed current outside the RMF coils. Plasma pressure is evaluated assuming pressure balance.