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Detailní měření poloidální rychlosti fluktuací hustoty a plovoucího potenciálu v okrajovém plazmatu tokamaku CASTOR
Brotánková, Jana ; Stöckel, Jan ; Hron, Martin ; Ďuran, Ivan ; Horáček, Jan
The ion saturation current and floating potential are measured with high temporal (1 micro s) and spatial (2.5 mm) resolutions within the edge plasma of CASTOR tokamak by two poloidally spaced radial arrays of Langmuir probes. The radial electric field and the phase velocity of plasma fluctuations are determined. It is found that radial profiles of both of these quantities are strongly sheared in the proximity of the last closed flux surface. In the proximity of the VSL, the shearing rate is higher than the characteristic frequency of plasma fluctuation and reduction of fluctuation level is observed.
Analýza relaxačních jevů v tokamaku CASTOR vyvolaných nabíjením okrajového plazmatu hluboce vnořenou elektrodou
Brotánková, Jana ; Stöckel, Jan ; Hron, Martin ; Štěpán, Michal ; Peterka, Matěj ; Horáček, Jan ; Ďuran, Ivan ; Spolaore, M. ; Peleman, P.
Transport of plasma to the walls is one of the crucial topics in magnetic confinement fusion research. In tokamak CASTOR, during special regimes with strong biasing of plasma, we can observe relaxation events, corresponding to increasing and collapsing of a transport barrier. High spatially and temporally resoluted arrays of probes enable us to describe these phenomena in details.

National Repository of Grey Literature : 21 records found   previous11 - 20next  jump to record:
See also: similar author names
2 HRON, Milan
1 Hron, Matouš
8 Hron, Michal
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