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Report No.

Enhanced H-mode energy confinement with co-toroidal rotation in JT-60U

Urano, Hajime; Takenaga, Hidenobu; Fujita, Takaaki; Kamada, Yutaka; Koide, Yoshihiko; Oyama, Naoyuki; Yoshida, Maiko

To understand the improved energy confinement with co-toroidal rotation, relation between heat transport in the plasma core and toroidal rotation was examined. Heat transport in the plasma core varies while sustaining self-similar temperature profile in the variations of toroidal rotation profiles. Pedestal pressure became larger with toroidal rotation in co-direction. H-mode confinement enhanced with co-toroidal rotation is determined by increased pedestal and reduced transport brought on by profile resilience. Local effect of toroidal rotation profile in the plasma core on heat transport is very weak.



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