
%0 Journal Article
%A Lewandowski, Jerome L. V. 
%T Tokamak Equilibrium Model with Finite Toroidicity Effects
%J Australian Journal of Physics
%D 1998/02/10
%V 51
%N 1
%P 81-93
%K 
%R https://doi.org/10.1071/P97035
%U https://www.publish.csiro.au/paper/P97035 
%X An inverse aspect ratio (= e) expansion of a low-pressure, axisymmetric tokamak equilibrium is presented. The usual assumption of the s &#8211; &#945; model (sharp pressure gradient in a small layer) is used to determine the first order correction in e for various physical quantities. In the infinite aspect ratio limit, the results of the standard s &#8211; &#945; model are recovered. Finite toroidicity effects on ion temperature-gradient-driven ballooning modes are discussed and a numerical comparison between the two models is presented. 
