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Sheared Zonal Flow ExB Drifts Predicted from Emissive Probes and Measured by Laser‐Induced Fluorescence

Abstract

An electron beam sheet injected into a plasma created regions of oppositely-directed electric fields above and below the sheet. An emissive probe was used to measure the spatial structure of the plasma potential from which the electric field could be deduced. Laser-induced fluorescence (LIF) was used to measure the spatial structure of the ion zonal flow velocity. The ExB velocity flow field predicted from the emissive probe results is compared to the LIF observations. © 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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