14th APS Topical Conference on High Temperature Plasma Diagnostics,  8 a 11 de Julho de 2002, Madison, USA

	Velocity fluctuations and time dependent E × B flows in the JET boundary region
	B. Gonçalves, C. Hidalgo, M. A. Pedrosa, C. Silvam, K. Erents e G. Mathews
	Resumo
	Fluctuations in the phase velocity of fluctuations have been computed from floating potential fluctuations in the JET plasma boundary region. Experimental results reinforce the idea that, in some conditions, fluctuations in the phase velocity are linked with fluctuations in radial-poloidal electric fields opening the possibility to investigate turbulent transport in the plasma core region from measurements of density fluctuations. These results indicate that time dependent radial electric fields and E × B shearing rates might be computed in the plasma core from measurement of density fluctuations.