Observation of ultra low q equilibrium
- 1 July 1987
- journal article
- letter
- Published by IOP Publishing in Nuclear Fusion
- Vol. 27 (7) , 1169-1173
- https://doi.org/10.1088/0029-5515/27/7/010
Abstract
The characteristics of a toroidal discharge with qa ≈ 1/2 is studied on TORIUT-6. Ultra low q equilibria that are stable against the global kink mode are realized through MHD relaxation and are shown to be characterized by dq/dr < 0 and a hollow current profile. The stable state lasts for 600 μs, which is of the order of the classical diffusion time. These experimental observations are consistent with non-linear MHD simulation results.Keywords
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