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The effect of the ExB velocity shear on the particle flux carried by electrostatic fluctuations at the edge is discussed comparing the results of the experiments T2R (R=1.2 m, a=0.18 m) and RFX (R=2 m, a=0.5 m). In both experiments electrostatic turbulence accounts for most of the particle flux. The shear of the ExB velocity is close or larger than the value required for turbulence suppression or...
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