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Abstract

Heliac devices are 3-dimensional stellarator configurations with relatively large rotational transform per field period and relatively weak magnetic shear. They are realised with toroidal coils appropriately displaced about a central conductor to produce bean shaped plasmas that rotate around this conductor. The H1 heliac is an L = 3 field period device of aspect ratio A 5 that can operate in either a 1 s pulsed mode at a field of 1 Tesla or steady state at a field of 0.25 Tesla.

A sequence of equilibria that lead to the standard H1 configuration with respect to global ideal magnetohydrodynamic (MHD) internal modes has been analysed. This study suggests that the H1 should be stable to global structures well beyond the beta limits imposed by local Mercier and ballooning modes. .

Additional information

Authors: COOPER W A, The Australian National University, Plasma Research Laboratory andDepartment of Theoretical Physics, Canberra (AU);GARDNER H J, The Australian National University, Plasma Research Laboratory andDepartment of Theoretical Physics, Canberra (AU)
Bibliographic Reference: Article: Proceedings of the 22nd European Physical Society Conference on Controlled Fusion and Plasma Physics, Vol. 19C (1995), Part II, pp. 145-148
Record Number: 199610070 / Last updated on: 1996-02-16
Category: PUBLICATION
Original language: en
Available languages: en
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