Effects of finite-β on the adiabatic invariant J in axisymmetric magnetic confinement configurations

An expression for the second adiabatic invariant J is derived including the effects of plasma diamagnetism and displaced magnetic surfaces. It is shown that for finite values of β < ε, where β is the ratio of kinetic to magnetic pressure and ϵ is the inverse aspect ratio of the torus, the J profi...

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Bibliographic Details
Published inPlasma physics Vol. 22; no. 5; pp. 465 - 475
Main Authors Galvão, R.M.O., Simpson, S.W., Wilner, E.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.05.1980
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Summary:An expression for the second adiabatic invariant J is derived including the effects of plasma diamagnetism and displaced magnetic surfaces. It is shown that for finite values of β < ε, where β is the ratio of kinetic to magnetic pressure and ϵ is the inverse aspect ratio of the torus, the J profile becomes more uniform and J may become a becreasing function of ψ, the flux function, in the outer region of the plasma column.
ISSN:0032-1028
1879-2979
DOI:10.1016/0032-1028(80)90006-1