Extended Data Fig. 7: Non-monotonic dependence of tearability and its effect on control.
From: Avoiding fusion plasma tearing instability with deep reinforcement learning
a, Non-linear dependence of tearability on βN observed in experiments. b, Non-monotonic dependence of tearability on beam power observed in model predictions. c, Comparison of a simple bang-bang controller (black) and our controller (blue) in a simulative plasma. While the simple controller induces an oscillatory actuation, our controller could achieve swifter stabilization with higher βN. The plasma response without adjusting triangularity from the RL control is also shown with blue dashed lines.
