Počet záznamů: 1
Tungsten transport in JET H-mode plasmas in hybrid scenario, experimental observations and modelling
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SYSNO ASEP 0435641 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Tungsten transport in JET H-mode plasmas in hybrid scenario, experimental observations and modelling Tvůrce(i) Angioni, C. (DE)
Mantica, P. (IT)
Pütterich, T. (DE)
Valisa, M. (IT)
Baruzzo, M. (IT)
Belli, A.E. (US)
Belo, P. (PT)
Casson, F.J. (GB)
Challis, C. (GB)
Drewelow, P. (DE)
Giroud, C. (GB)
Hawkes, N. (GB)
Hender, T.C. (GB)
Hobirk, J. (DE)
Koskela, T. (FI)
Lauro Taroni, L. (IT)
Maggi, C.F. (DE)
Mlynář, Jan (UFP-V) RID
Odstrčil, T. (DE)
Reinke, M.L. (GB)
Romanelli, M. (GB)Celkový počet autorů 22 Zdroj.dok. Nuclear Fusion. - : Institute of Physics Publishing - ISSN 0029-5515
Roč. 54, č. 8 (2014), 083028-083028Poč.str. 26 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. AT - Rakousko Klíč. slova heavy impurity transport ; H-mode hybrid scenario ; neoclassical and turbulent transport Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech Institucionální podpora UFP-V - RVO:61389021 UT WOS 000339991600032 EID SCOPUS 84904959796 DOI 10.1088/0029-5515/54/8/083028 Anotace The behaviour of tungsten in the core of hybrid scenario plasmas in JET with the ITER-like wall is analysed and modelled with a combination of neoclassical and gyrokinetic codes. In these discharges, good confinement conditions can be maintained only for the first 2–3 s of the high power phase. Later W accumulation is regularly observed, often accompanied by the onset of magneto-hydrodynamical activity, in particular neoclassical tearing modes (NTMs), both of which have detrimental effects on the global energy confinement. The dynamics of the accumulation process is examined, taking into consideration the concurrent evolution of the background plasma profiles, and the possible onset of NTMs. Two time slices of a representative discharge, before and during the accumulation process, are analysed with two independent methods, in order to reconstruct the W density distribution over the poloidal cross-section Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2015
Počet záznamů: 1