Line Plot from Scientific Research

Measurements of magnetic surface perturbations using electron temperature ( T e ) contours (red) in 200 eV steps and sinusoidal fits to each contour (blue) in 20 eV steps along the radial coordinate R of the ECE diagnostic relative to the axisymmetric plasma boundary {R}{bnd}{axi} . This is shown during the RMP field rotation for an ELM-suppressed plasma (discharge # 40180) using only data points in-between ELMs. The black bars on the left of a and b show the averaged position of rational surfaces (6/2, 7/2 and so on). The grey bars indicate averaged ECE channel positions. The thick light-blue lines mark the pedestal top of T e ( {T}{e}{top} ).

DOI