Fig. 3: Transport modelling of the dependence of normalized electron turbulent heat flux on the normalized electron density gradient.
From: A high-density and high-confinement tokamak plasma regime for fusion energy
a, Moderate αMHD case from the high-βP discharge in Fig. 2. Fp scan with the constant ∇p approach in blue and with the constant ∇T approach in vermillion. The experimental (Exp.) value of Fp is indicated by the black arrow. b, High αMHD case from the high-βP discharge in Fig. 2. Same colour coding as in a. c,d, Temperature (c) and density (d) profiles for the low-q95 H-mode case analysed in e and f. Dashed lines show the radial location for transport analysis. e,f, Two-dimensional scans of normalized electron turbulent heat flux on Fp and local q based on the low-q95 H-mode data shown in c and d. Full experimental βe (e) and half experimental βe (f). The experimental data point from the low-q95 discharge is indicated by a blue star in e.
