Return To: Session THP2 - Theory 2 (Transport)
Prev Page: (THP2/28) Numerical and Theoretical Studies of Turbulence and
Next Page: (THP2/30) Effect of Rotation on Ideal and Resistive

(THP2/29) Intrinsically Steady-State Tokamaks

K. C. Shaing, A. Y. Aydemir, R. D. Hazeltine

Institute for Fusion Studies, The University of Texas at Austin, Austin TX 78712, USA

W. A. Houlberg

Oak Ridge National Lab., Oak Ridge, TN 37831, USA

M. C. Zarnstorff
Princeton Plasma Plasma Physics Lab., Princeton, NJ 08543, USA

Abstract.  It is shown that tokamaks can be intrinsically steady state without seed currents by coupling potato bootstrap current in the region close to the magnetic axis to the banana bootstrap current away from the axis. The equilibria we find are highly elongated (e.g. $\kappa$ = 3) and have naturally reversed shear profiles. The vertical instability of elongated tokamaks and theory of enhanced reversed shear mode for this class of equilibria are also developed.

Read the full paper in PDF format.