Modification of the macroscopic stability of a tandem mirror by partial line-tying
- 1 November 1984
- journal article
- Published by AIP Publishing in Physics of Fluids
- Vol. 27 (11) , 2711-2722
- https://doi.org/10.1063/1.864575
Abstract
Increased stability is observed during experiments with gun injection in the Phaedrus tandem mirror. This is manifested by three effects. First, a magnetic mirror cell with bad average curvature, adjacent to a plasma gun, confines plasma with betas up to 20%. Second, the central cell, also with bad curvature, is stable at betas up to 20%, exceeding the minimum‐B interchange stability limit by a factor of 20. Third, the quadrupole magnetic field required for interchange stability is reduced. These effects are shown to agree with a theory of line‐tying stabilization, supplemented by minimum‐B stabilization.Keywords
This publication has 23 references indexed in Scilit:
- Plasma convection and line-tyingPhysics of Fluids, 1983
- Flute stabilization by a cold line-tied blanketPhysics of Fluids, 1982
- Collisional limits of resonant and neoclassical transport in tandem mirrorsNuclear Fusion, 1982
- Observation of Macroscopic Stability Limits in a Tandem MirrorPhysical Review Letters, 1982
- Curvature-induced interchange mode in an axisymmetric plasmaPhysics of Fluids, 1982
- Experiments in a Tandem Mirror Sustained and Heated Solely by rfPhysical Review Letters, 1981
- Experimental Observation on Enhancement of the Ambipolar Potential by Injection of Neutral Beams in a Tandem MirrorPhysical Review Letters, 1979
- Experimental Stabilization of Interchange Mode by Surface Line TyingPhysical Review Letters, 1979
- Axial feedback stabilization of flute mode in a simple mirror reactorPlasma Physics, 1977
- An adiabatic trap with combined magnetic fieldAtomic Energy, 1964