Equilibrium and Fluctuations in a Plasma Confined in a Pure Toroidal Field

Abstract

Equilibrium and confinement in currentless toroidal devices is explained in terms of a flow-fluctuation cycle. The initial limiter equilibrium is shown to get fortified via fluctuation driven poloidal rotation and ponderomotive force in a self-consistent manner. The relevance of this to the recently proposed L-H transition theories is briefly discussed.