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Localized transverse electric fields are known to arise in the near-Earth plasma environment. These fields can induce plasma flows perpendicular to the ambient magnetic field and the resulting sheared flow layers can support a variety of plasma instabilities [1]. These phenomena have been the topic of extensive theoretical and experimental study both at the Naval Research Laboratory (NRL) and within the broader scientific community. Numerous laboratory experiments have been performed in the Space Physics Simulation Chamber (SPSC) at NRL to study both the associated transverse velocity shear-driven instabilities [2] and, more recently, soliton generation by object immersed in these flows. Traditionally, these experiments have utilized cylindrical ExB flows produced by applying a radial electric field within a larger uniform domain of axial magnetic field. The resulting flow profiles have been determined indirectly from electric field measurements within the flow layer [3]. Recently, experiments have been performed in the SPSC to directly map the velocity distribution function (VDF) in cylindrical flow regions using laser induced fluorescence (LIF). Two co-axial arrays of concentric mesh rings are used to establish a cylindrical domain of plasma flow within the SPSC. The rings are sequentially biased so as to induce a constant radial electric field. The well-known 668.6138nm Ar II LIF scheme beginning with the 3d<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</sup><inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">F7</inf>/2 metastable state [4] is used to measure the VDF of argon ions, while laser injection and fluorescence collection are implemented using in-vacuum optics mounted to a linear positioning system with mutual focal points aligned to ~1 mm spatial resolution. The flow velocity is mapped as a function of both z and r, as well as with respect to the applied electric and magnetic fields. Preliminary results are compared to the flow velocity predicted indirectly via emissive probe measurements of the electric field, and ramifications of the chosen geometry are discussed.