Edge Radial Electric Field in Positive and Negative Triangularity Plasmas in the TCV Tokamak

S. Rienäcker, P. Hennequin, L. Vermare +10

We present the first edge $E_r$ measurements in negative triangularity (NT) TCV plasmas. The Doppler backscattering measurements of $v_{\perp }\approx E_r/B$ reveal a significant imp…