Measurement of Sheared Flows in the Edge Plasma of the CASTOR Tokamak

0335094 - ÚFP 2010 RIV RU eng J - Journal Article
Brotánková, Jana - Stöckel, Jan - Horáček, Jan - Seidl, Jakub - Ďuran, Ivan - Hron, Martin - Van Oost, G.
Measurement of Sheared Flows in the Edge Plasma of the CASTOR Tokamak.
Plasma Physics Reports. Roč. 35, č. 11 (2009), s. 980-986. ISSN 1063-780X. E-ISSN 1562-6938.
[IAEA Technical Meeting on Research Using Small Fusion Devices/18th./. Alushta (Krym), 25.09.2008-27.09.2008]
Institutional research plan: CEZ:AV0Z20430508
Keywords : Tokamak * probe diagnostics * sheared flows * edge plasma * turbulence
Subject RIV: BL - Plasma and Gas Discharge Physics
Impact factor: 0.584, year: 2009
http://www.springerlink.com/content/u571504gmq118314/

The ion saturation current and floating potential are measured with high temporal (1micro s) and spatial (2.5 mm) resolutions at the plasma edge of the CASTOR tokamak by two poloidally spaced radial arrays of Langmuir probes. The radial electric field and the phase velocity of plasma fluctuations are estimated. The position of the velocity shear layer (VSL) is localized with a high precision. The shearing rate E×B determined and found to be comparable with the inverse of the correlation time of fluctuations 1/ac outside the VSL and about five times higher in the proximity of the VSL. A smThe ion saturation current and floating potential are measured with high temporal (1 micro s) and spatial (2.5 mm) resolutions at the plasma edge of the CASTOR tokamak by two poloidally spaced radial arrays of Langmuir probes. The radial electric field and the phase velocity of plasma fluctuations are estimated. The position of the velocity shear layer (VSL) is localized with a high precision.
Permanent Link: http://hdl.handle.net/11104/0179664