Extended Data Fig. 1: Ambipolar radial electric field Er resulting from neoclassical simulations.
From: Observation of a reduced-turbulence regime with boron powder injection in a stellarator
Er resulting from SFINCS simulations are plotted as a function of the normalized effective minor radius reff/a99 for the cases in Fig. 1b-d (no Ti measurement is available for case in Fig. 1a). For each subplot, Er during boron powder injection (red) is compared with its reference case without powder injection (blue). For a) and b), the reference case is the same discharge at a time before powder injection. For case c) the reference case is an identical discharge without powder injection, at the same time.
