Fig. 4: Comparison of transport with different 3D field spectra. | Nature Communications

Fig. 4: Comparison of transport with different 3D field spectra.

From: Tailoring tokamak error fields to control plasma instabilities and transport

Fig. 4

a Time traces of plasma current (Ip), root sum squared coil current amplitude (I3D), and Dα emission with different 3D field spectra. b edge normalized resonant field profiles (\(\delta {B}_{{{{{{{{\rm{res}}}}}}}}}/\delta {B}_{{{{{{{{\rm{res}}}}}}}}}\left({\psi }_{{{{{{{{\rm{N}}}}}}}}} \sim 0.95\right)\)) with a different 3D field spectrum. c, d Toroidal rotation frequency (ωϕ) and density (ne) profiles before 3D fields at t = 5.00s ± 0.02s. e Calculated Neoclassical Toroidal Viscosity (NTV) torque profiles. f, g Toroidal rotation frequency and density profiles after ELM suppression at t = 9.06s ± 0.02s, t = 8.13 ± 0.02s, and t = 7.47 ± 0.02s of discharge, #26016 (green), #26014 (blue), #26015 (red), respectively. The selected time points are indicated with a vertical dashed line in a.

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