Coarse-grained gyrokinetics for the critical ion temperature gradient in stellarators

Coarse-grained gyrokinetics for the critical ion temperature gradient in stellarators

We present a modified gyrokinetic theory to predict the critical gradient that determines the linear onset of the ion temperature gradient (ITG) mode in stellarator plasmas. A coarse-graining technique is applied to the drift curvature, entering the standard gyrokinetic equations, around local minim...

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Bibliographic Details
Main Authors: G. T. Roberg-Clark, G. G. Plunk, P. Xanthopoulos
Format: Article
Language:English
Published: American Physical Society 2022-08-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.4.L032028

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