MHD and Fluid Instabilities at the Plasma Edge in the Presence of a Separatrix and X-Point

Abstract

The effect of an X-point and separatrix on unstable modes is considered within the context of MHD and fluid models. We begin by reviewing the magnetic flux geometry in the vicinity of the X-point and the effect it has on wave behavior. We then consider fluid models for the edge and SOL plasma based on the reduced Braginskii equations, and subsets thereof… (More)

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