Fig. 3: Control demonstrations.
From: Magnetic control of tokamak plasmas through deep reinforcement learning
Control demonstrations obtained during TCV experiments. Target shape points with 2 cm radius (blue circles), compared with the equilibrium reconstruction plasma boundary (black continuous line). In all figures, the first time slice shows the handover condition. a, Elongation of 1.9 with vertical instability growth rate of 1.4 kHz. b, Approximate ITER-proposed shape with neutral beam heating (NBH) entering H-mode. c, Diverted negative triangularity of −0.8. d, Snowflake configuration with a time-varying control of the bottom X-point, where the target X-points are marked in blue. Extended traces for these shots can be found in Extended Data Fig. 2.
