Local variables affecting H-mode threshold on Alcator C-Mod
- 1 May 1998
- journal article
- Published by IOP Publishing in Plasma Physics and Controlled Fusion
- Vol. 40 (5) , 689-692
- https://doi.org/10.1088/0741-3335/40/5/024
Abstract
An edge temperature threshold for the L-H transition is found on the Alcator C-Mod tokamak. The critical temperature depends weakly on density and increases with and with unfavourable drift direction. at the H-L transition can be greater than or equal to the L-H threshold. Magnetic fluctuations are observed at some H-L transitions. Measured parameters are compared with H-mode theories, including nonlinear drift-ballooning code simulations.Keywords
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