Buttery, R.J.; Akers, R.J.; Arends, E; Conway, N.J.; Counsell, G.; Cunningham, G; Gryaznevich, M.; Hole, Matthew; Taylor, D.; Turri, G; Wilson, H.R.
The development of reliable H-modes on MAST, together with advances in heating power and a range of high spatial resolution diagnostics, has provided a platform to enable MAST to address some of the most important issues of tokamak stability. In particular the high β potential of the spherical tokamak is highlighted with stable operation at βN ∼ βT, βp ∼ 16% and βp up to ∼2. Magnetic diagnostic evaluation of the global β parameters is independently confirmed by kinetic profile data....[Show more]
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