Počet záznamů: 1
Effect of the resonant magnetic perturbation on the plasma parameters in COMPASS tokamak’s divertor region
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SYSNO ASEP 0489646 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV Záznam nebyl označen do RIV Název Effect of the resonant magnetic perturbation on the plasma parameters in COMPASS tokamak’s divertor region Tvůrce(i) Dimitrova, Miglena (UFP-V) ORCID
Cahyna, Pavel (UFP-V) RID
Peterka, Matěj (UFP-V) RID, ORCID
Hasan, E. (BG)
Popov, Tsv.K. (BG)
Ivanova, P. (BG)
Vasileva, E. (BG)
Pánek, Radomír (UFP-V) RID
Cavalier, Jordan (UFP-V) RID, ORCID
Seidl, Jakub (UFP-V) RID
Markovič, Tomáš (UFP-V) RID
Havlíček, Josef (UFP-V) RID, ORCID
Dejarnac, Renaud (UFP-V) RID, ORCID
Weinzettl, Vladimír (UFP-V) RID, ORCID
Háček, Pavel (UFP-V) RID, ORCID
Tomeš, Matěj (UFP-V)Číslo článku 012001 Zdroj.dok. Journal of Physics: Conference Series, 982. - Bristol : Institute of Physics Publishing, Ltd., 2018 - ISSN 1742-6596 Poč.str. 6 s. Forma vydání Online - E Akce International Workshop and Summer School on Plasma Physics, IWSSPP 2016/7./ Datum konání 26.06.2016 - 02.07.2016 Místo konání Kiten Země BG - Bulharsko Typ akce WRD Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova Resonant magnetic perturbation ; electron temperature ; bi-Maxwellian EEDF ; Divertor Langmuir probes ; first-derivative probe technique Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech Obor OECD Fluids and plasma physics (including surface physics) CEP LM2015045 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UFP-V - RVO:61389021 EID SCOPUS 85045621844 DOI 10.1088/1742-6596/982/1/012001 Anotace The effect of RMP on the L-mode plasma parameters in the divertor region of the COMPASS tokamak was studied using the array of 39 Langmuir probes embedded into the divertor target. The current-voltage (IV) probe characteristics were processed by the first-derivative probe technique to obtain the plasma potential and the electron energy distribution function (EEDF) which was approximated by a bi-Maxwellian EEDF with a low-energy (4-6 eV) fraction and a high-energy (11-35 eV) one, the both factions having similar electron density. Clear splitting was observed during the RMP pulse in the low-field-side scrape-off-layer profiles of the floating potential Ufl and the ion saturation current density Jsat. The negative peaks of Ufl induced by RMP spatially overlaps with the local minima of Jsat (and ne) rather than with its local maxima which is partly caused by the spatial variation of the plasma potential and partly by the changed shape of the EEDF. The effective temperature of the whole EEDF is not correlated with the negative peaks of Ufl, and the profile of the parallel power flux density shows secondary maxima due to RMP which mimic those of Jsat. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2019
Počet záznamů: 1