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This paper deals with the new spectral and microturbulence experimental dataand their analysis, which show, that the radial electric field Er generated atthe LH heating (LHH) in the FT-2 is high enough to form the transport barriers.The ETB is formed when LHH is switched off. The radial fluctuation-inducedE&#61620;B drift flux densities near LCFS in SOL are measured at two differentpoloidal angles. For this purpose two Langmuir probes located at low and highfield sides of the torus are used. Registration of the poloidal and radialcomponents of the electric field and density fluctuations at the same timeduring one discharge permits to measure the poloidal asymmetry of the transportreduction mechanism of the radial and poloidal particle fluxes in the SOL. Theabsolute E(~)&#61553; fluctuation levels show dependence on the sign of Ershear. The modification of the microscale turbulence by the poloidal Er x Brotation shear &#61559;E&#61620;B at the L - H transition near LCFS is alsostudied by X-mode fluctuation Reflectometry. The new data were obtained byspatial spectroscopic technique.Comment: 12th International Congress on Plasma Physics, 25-29 October 2004,  Nice (France

czechoslovak journal of physics/czechoslovak journal of physics

Poloidal inhomogenity of the particle fluctuation induced fluxes near the LCFS at lower hybrid heating and improved confinement transition at the FT-2 tokamak