Počet záznamů: 1
Latest investigations on fluctuations, ELM filaments and turbulent transport in the SOL of ASDEX Upgrade
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SYSNO ASEP 0363749 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Latest investigations on fluctuations, ELM filaments and turbulent transport in the SOL of ASDEX Upgrade Tvůrce(i) Müller, H. W. (DE)
Adámek, Jiří (UFP-V) RID, ORCID
Cavazzana, R. (IT)
Conway, G.D. (DE)
Fuchs, C. (DE)
Gunn, J. P. (FR)
Herrmann, A. (DE)
Horáček, Jan (UFP-V) RID, ORCID
Ionita, C. (AT)
Kallenbach, A. (DE)
Kočan, M. (DE)
Maraschek, M. (DE)
Maszl, C. (AT)
Mehlmann, F. (AT)
Nold, B. (DE)
Peterka, M. (CZ)
Rohde, V. (DE)
Schweinzer, J. (DE)
Schrittwieser, R. (AT)
Vianello, N. (IT)
Wolfrum, E. (DE)
Zuin, M. (IT)Zdroj.dok. Nuclear Fusion. - : Institute of Physics Publishing - ISSN 0029-5515
Roč. 51, č. 7 (2011), 073023-073023Poč.str. 11 s. Forma vydání web - web Jazyk dok. eng - angličtina Země vyd. AT - Rakousko Klíč. slova SOL ; ASDEX ; ELM ; tokamak ; ball-pen ; H-mode Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech CEP KJB100430901 GA AV ČR - Akademie věd CEZ AV0Z20430508 - UFP-V (2005-2011) UT WOS 000291933300025 DOI 10.1088/0029-5515/51/7/073023 Anotace This paper presents turbulence investigations in the scrape-off layer (SOL) of ASDEX Upgrade in ohmic, L-mode and H-mode discharges using electrostatic and electromagnetic probes. Detailed studies are performed on small scale turbulence and on ELM filaments. Simultaneous measurements of floating and plasma potential fluctuations revealed significant differences between these quantities. Large errors can occur when the electric field is extracted from floating potential measurements, even in ohmic discharges. Turbulence studies in ohmic plasmas show the existence of density holes inside the separatrix and blobs outside. Close to the separatrix a reversal of the poloidal blob propagation velocity occurs. Investigations on the Reynolds stress in the scrape-off layer (SOL) show its importance for the momentum transport in L-mode while its impact for momentum transport during ELMs in H-mode is rather small. In the far SOL the electron density and temperature were measured during Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2012
Počet záznamů: 1