Chellai, O.Alberti, S.Furno, IGoodman, T.Maj, O.Merlo, G.Poli, E.Ricci, P.Riva, F.Weber, H.2021-05-222021-05-222021-05-222021-06-0110.1088/1741-4326/abf43fhttps://infoscience.epfl.ch/handle/20.500.14299/178306WOS:000645526500001The scattering of millimeter-wave beams from electron density fluctuations and the associated beam broadening are experimentally demonstrated. Using a dedicated setup, instantaneous deflection and (de-)focusing of the beam due to density blobs on the beam path are shown to agree with full-wave simulations. The detected time-averaged wave power transmitted through the turbulent plasma is reproduced by the radiative-transfer model implemented in the WKBeam code, which predicts a similar to 50% turbulence-induced broadening of the beam cross-section. The role of core turbulence for the considered geometry is highlighted.Physics, Fluids & PlasmasPhysicsmillimeter-wave beamplasma turbulencemillimeter-wave scatteringlangmuir probesfull-wave simulationselectron-cyclotron resonant heatingiterdensity-fluctuationscurrent drivefusiontext::journal::journal article::research article