Fig. 2: Time history of experimental parameters and plasma profiles of DIII-D 190904.
From: A high-density and high-confinement tokamak plasma regime for fusion energy
a, fGr in blue and H98y2 in green. b, βN in blue, βP in green and q95 in violet. c, D2 gas puffing in feedback control in black and dedicated feedforward D2 gas puffing in vermillion. d, Peak pedestal electron density gradient in blue and pedestal total pressure in vermillion. e, Separatrix electron density in green and ratio between pedestal electron density and separatrix electron density in violet. f–i, Profiles of electron temperature (f), ion temperature (g), electron density (h) and carbon density (i) at the time slices shown in the vertical dashed lines in a. Dots with error bars are measurements. j–l, Dα data for the three periods shown in the shaded area in d. a.u., arbitrary units. m–o, Total pressure profiles at the time slices of the vermillion dots in d.
