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Article Dans Une Revue Physics of Plasmas Année : 2018

Poloidal asymmetries of flows in the Tore Supra tokamak

Résumé

Simultaneous measurements of binormal velocity of density fluctuations using two separate Doppler backscattering systems at the low field side and at the top of the plasma show significant poloidal asymmetry. The measurements are performed in the core region between the radii 0.7 < ρ  <  0.95, over a limited number of L-mode discharges covering a wide range of plasma conditions in the Tore Supra tokamak. A possible generation mechanism by the ballooned structure of the underlying turbulence, in the form of convective cells, is proposed for explaining the observation of these poloidally asymmetric mean flows.
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Dates et versions

hal-01894817 , version 1 (12-10-2018)

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Laure Vermare, Pascale Hennequin, Özgür D. Gürcan, X. Garbet, Cyrille Honoré, et al.. Poloidal asymmetries of flows in the Tore Supra tokamak. Physics of Plasmas, 2018, 25 (2), pp.020704. ⟨10.1063/1.5022122⟩. ⟨hal-01894817⟩
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