Showing 1 - 2 of 2 UKAEA Paper Results
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UKAEA-CCFE-PR(23)1782023
This Letter reports on observed interplay between beam-driven modes of sweeping frequency (chirping modes) and transitions to the enhanced global confinement regime (H-mode) and back to the low confinement regime (L-mode) in the spherical tokamak ST40. The H-modes of plasma confinement are identified from decreased intensity of Dα signal and f…
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UKAEA-CCFE-PR(25)2792022
Spherical Tokamaks (STs) with a high normalised plasma pressure parameter are promising alternative pathways for net gain magnetic fusion reactors. Toroidal Alfvén eigenmodes (TAEs) excited via wave-particle resonances by fusion-born alpha-particles are of major concern for burning deuterium-tritium (D-T) plasmas in magnetic fusion as TAEs ca…
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