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Analytic study on low-n external ideal infernal modes in tokamaks with large edge pressure gradients
CNR, IFP, Milan, Italy.
SPC, Lausanne, Switzerland.
CNR, IFP, Milan, Italy.
CNR, IFP, Milan, Italy.
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2018 (English)In: Journal of Plasma Physics, ISSN 0022-3778, E-ISSN 1469-7807, Vol. 84, no 2, article id 745840201Article in journal (Refereed) Published
Abstract [en]

The problem of pressure driven infernal type perturbations near the plasma edge is addressed analytically for a circular limited tokamak configuration which presents an edge flattened safety factor. The plasma is separated from a metallic wall, either ideally conducting or resistive, by a vacuum region. The dispersion relation for such types of instabilities is derived and discussed for two classes of equilibrium profiles for pressure and mass density.

Place, publisher, year, edition, pages
2018. Vol. 84, no 2, article id 745840201
Keywords [en]
fusion plasma, plasma confinement, plasma instabilities
National Category
Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:uu:diva-355686DOI: 10.1017/S002237781800020XISI: 000431140300006OAI: oai:DiVA.org:uu-355686DiVA, id: diva2:1230452
Available from: 2018-07-03 Created: 2018-07-03 Last updated: 2018-07-03Bibliographically approved

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Wahlberg, Christer

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