Langmuir probe and infrared thermography measurements of wide and narrow heat flux profiles in the ST40 tokamak

T. Brewer, X. Zhang, C. Marsden +11

Very narrow heat flux profiles have been observed on ST40 with decay lengths in the near scrape-off-layer (SOL) of $\hat{I}{»}_{q,near}<$~1~mm in H-mode plasmas. Measurements from divertor…