Study of the low aspect ratio limit tokamak in the Heidelberg spheromak experiment
- 1 December 1987
- journal article
- letter
- Published by IOP Publishing in Nuclear Fusion
- Vol. 27 (12) , 2178-2182
- https://doi.org/10.1088/0029-5515/27/12/017
Abstract
A vacuum toroidal field has been superimposed on a spheromak by means of an axial conductor. It has been observed that the resulting configuration corresponds to a tokamak with limiting low aspect ratio, i.e. a spherical torus with aspect ratio 1.1. The corresponding spheromak is unstable to n = 1 tilt and shift modes, but this tokamak configuration is found to be globally stable without additional passive stabilization.Keywords
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