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Evidence for a poloidally localized enhancement of radial transport in the scrape-off layer of the Tore Supra tokamak
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SYSNO ASEP 0355644 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Evidence for a poloidally localized enhancement of radial transport in the scrape-off layer of the Tore Supra tokamak Author(s) Gunn, J. P. (FR)
Boucher, C. (CA)
Dionne, M. (CA)
Ďuran, Ivan (UFP-V) RID, ORCID
Fuchs, Vladimír (UFP-V) RID
Loarer, T. (FR)
Nanobashvili, I. (FR)
Pánek, Radomír (UFP-V) RID
Pascal, J.-Y. (FR)
Saint-Laurent, F. (FR)
Stöckel, Jan (UFP-V) RID
Van Rompuy, T. (BE)
Zagórski, R. (PL)
Adámek, Jiří (UFP-V) RID, ORCID
Bucalossi, J. (FR)
Dejarnac, Renaud (UFP-V) RID, ORCID
Devynck, P. (FR)
Hertout, P. (FR)
Hron, Martin (UFP-V) RID, ORCID
Lebrun, G. (CA)
Moreau, P. (FR)
Rimini, F. (FR)
Sarkissian, A. (CA)
Van Oost, G. (BE)Source Title Journal of Nuclear Materials. - : Elsevier - ISSN 0022-3115
363-365, - (2007), s. 484-490Number of pages 7 s. Publication form web - web Action International Conference on Plasma-Surface Interactions in Controlled Fusion Devices/17th./ Event date 22.05.2006-26.05. 2006 VEvent location Hefei Country CN - China Event type WRD Language eng - English Country NL - Netherlands Keywords Cross-field transport ; Edge plasma ; Plasma flow ; Tore Supra Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders R&D Projects GP202/03/P062 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20430508 - UFP-V (2005-2011) UT WOS 000247657200084 DOI 10.1016/j.jnucmat.2007.01.195 Annotation 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 Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2011
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