Fig. 4: Comparison of the experiments conducted with different threshold settings.
From: Avoiding fusion plasma tearing instability with deep reinforcement learning

a, The time traces of discharges with different thresholds; 193277 (k = 0.2), 193280 (k = 0.5) and 193281 (k = 0.7). b–d, The actual beam power and the contour of the predicted tearability for possible beam powers in the three discharges 193277 (b), 193280 (c) and 193281 (d).