An edge pedestal investigation for high-confinement tokamak plasmas

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Title: An edge pedestal investigation for high-confinement tokamak plasmas
Author: Stacey, Weston M.
Abstract: A model for the edge pedestal in high-confinement mode tokamak plasmas is described. Separate gradient scale lengths of the density and of the ion and electron temperatures are calculated from transport and atomic physics considerations, and a common pedestal width is calculated from either a magnetohydrodynamic pedestal β-limit or from neutral penetration considerations. Predictions of the model for a representative gas fueled tokamak model problem are discussed vis-à-vis measured values of pedestal gradient scale lengths and widths, ballooning mode limits, and scaling with operational parameters
Description: © 2002 American Institute of Physics. The electronic version of this article is the complete one and can be found online at: DOI: 10.1063/1.1461846
Type: Article
ISSN: 1070-664X
Citation: Weston M. Stacey, "An edge pedestal investigation for high-confinement tokamak plasmas," Physics of Plasmas, 9 (2002) 1332
Date: 2002-01-23
Contributor: Georgia Institute of Technology. School of Physics
Publisher: Georgia Institute of Technology
American Institute of Physics
Subject: Plasma toroidal confinement
Plasma boundary layers
Plasma density
Plasma temperature
Plasma transport processes
Plasma magnetohydrodynamics
Ballooning instability

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