Fig. 7: Incremental improvements for the baseline high-performance scenario.
From: Learning plasma dynamics and robust rampdown trajectories with predict-first experiments at TCV

Experimental traces of key actuators are shown (left), including plasma current, Ip, neutral beam power inject, PNBI, elongation, κ, and minor radius, aminor. Additional relevant quantities (right) include the stored energy, Wtot, line-averaged electron density, \({\bar{n}}_{e,20}\), Greenwald fraction, fGW, and vertical instability growth rate, γvgr. Time is set relative to the beginning of the termination phase. The plasma current, Ip, and stored energy, Wtot, trajectories show improvement in rampdown speed and disruptivity as the experiment progressed.