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2. Regime of Improved Confinement and High Beta in Neutral-Beam-Heated Divertor Discharges of the ASDEX Tokamak
3. Attainment of high confinement in neutral beam heated divertor discharges in the PDX tokamak
4. H-mode confinement in tokamaks
5. Observation of an improved energy-confinement regime in neutral-beam–heated divertor discharges in the DIII-D tokamak