Počet záznamů: 1  

Evidence for a poloidally localized enhancement of radial transport in the scrape-off layer of the Tore Supra tokamak

  1. 1. 0355644 - UFP-V 2011 RIV NL eng J - Článek v odborném periodiku
    Gunn, J. P. - Boucher, C. - Dionne, M. - Ďuran, Ivan - Fuchs, Vladimír - Loarer, T. - Nanobashvili, I. - Pánek, Radomír - Pascal, J.-Y. - Saint-Laurent, F. - Stöckel, Jan - Van Rompuy, T. - Zagórski, R. - Adámek, Jiří - Bucalossi, J. - Dejarnac, Renaud - Devynck, P. - Hertout, P. - Hron, Martin - Lebrun, G. - Moreau, P. - Rimini, F. - Sarkissian, A. - Van Oost, G.
    Evidence for a poloidally localized enhancement of radial transport in the scrape-off layer of the Tore Supra tokamak.
    Journal of Nuclear Materials. 363-365, - (2007), s. 484-490 ISSN 0022-3115.
    [International Conference on Plasma-Surface Interactions in Controlled Fusion Devices/17th./. Hefei, 22.05.2006-26.05. 2006]
    Grant CEP: GA ČR GP202/03/P062
    Výzkumný záměr: CEZ:AV0Z20430508
    Klíčová slova: Cross-field transport * Edge plasma * Plasma flow * Tore Supra
    Kód oboru RIV: BG - Jaderná, atomová a mol. fyzika, urychlovače
    Impakt faktor: 1.643, rok: 2007

    Near-sonic parallel flows are systematically observed in the far scrape-off layer(SOL) of the limiter tokamak Tore Supra, as in many L-mode X-point divertor tokamak plasmas. The poloidal variation of the parallel flow has been measured by moving the contact point of a small circular plasma onto limiters at different poloidal angles. The resulting variations of flow are consistent with the existence of a poloidally localized enhancement of radial transport concentrated in a 30deg sector near the outboard midplane. If the plasma contact point is placed on the inboard limiters, then the SOL expands to fill all the space between the plasma and the outboard limiters, with density decay lengths between 10 and 20 cm. On the other hand, if the contact point lies on the outboard limiters, the localized plasma outflux is scraped off and the SOL is very thin with decay lengths around 2–3 cm. The outboard radial transport would have to be about two orders of magnitude stronger than inboard to
    Trvalý link: http://hdl.handle.net/11104/0194363