Enhanced pedestal transport driven by edge collisionality on Alcator C-Mod and its role in regulating H-mode pedestal gradients

Enhanced pedestal transport driven by edge collisionality on Alcator C-Mod and its role in regulating H-mode pedestal gradients

Experimental measurements of plasma and neutral profiles across the pedestal are used in conjunction with 2D edge modeling to examine pedestal stiffness in Alcator C-Mod H-mode plasmas. Enhanced D _α experiments on Alcator C-Mod observed pedestal degradation and loss in confinement below a critical...

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Bibliographic Details
Main Authors: M.A. Miller, J.W. Hughes, A.M. Rosenthal, S. Mordijck, R. Reksoatmodjo, M. Wigram, J. Dunsmore, F. Sciortino, R.S. Wilcox, T. Odstrčil
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:Nuclear Fusion
Subjects:
pedestal transport
separatrix collisionality
neutral fueling
boundary modeling
Online Access:https://doi.org/10.1088/1741-4326/ada1e3
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