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Plasma equilibrium in tokamaks

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Abstract

This lecture treats the magnetohydrodynamic (MHD) equilibrium of axisymmetric plasmas, as given by the Grad-Shafranov equation. In a brief introduction, equilibrium parameters such as the q-profile, the internal inductance, and the poloidal beta are introduced. The properties of these quantities will be illustrated in the case of the tokamak, by applying the large aspect ratio tokamak approximation. The properties of a non-circular plasma cross-section and the role of the vertical field will also be discussed in this approximation. Some attention is given to the (numerical) problem of solving the equilibrium equation and of reconstructing a plasma equilibrium from external measurements. The numerical methods themselves are presented in [ 1].

Year of Publication
2008
Journal
Fusion Science and Technology
Volume
53
Number
2T
Number of Pages
115-121
Date Published
Feb
Type of Article
Article
ISBN Number
1536-1055
Accession Number
ISI:000253871700014
URL
PId
e70f7fe632110b63e4f8948ba143873f
Alternate Journal
Fusion Sci. Technol.
Journal Article
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