Počet záznamů: 1
Observation of Secondary Instability of 2/1 Magnetic Island in COMPASS High Density Limit Plasmas.
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SYSNO ASEP 0483193 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Observation of Secondary Instability of 2/1 Magnetic Island in COMPASS High Density Limit Plasmas. Tvůrce(i) Shah, S.I.W. (PT)
Salzedas, F. (PT)
Havlíček, Josef (UFP-V) RID, ORCID
Stöckel, Jan (UFP-V) RID
Silva, C. (PT)Číslo článku P5.003 Zdroj.dok. EPS 2016: 43rd European Physical Society Conference on Plasma Physics, 40A. - Mulhouse : European Physical Society, 2016 / Mantica P. ; Giruzzi G. ; Fajardo M. ; Gans T. ; Poedts S. ; Vennekens N. - ISBN 2-914771-99-1 Poč.str. 4 s. Forma vydání Online - E Akce EPS 2016: Conference on Plasma Physics/43./ Datum konání 04.07.2016 - 08.07.2016 Místo konání Leuven Země BE - Belgie Typ akce EUR Jazyk dok. eng - angličtina Země vyd. FR - Francie Klíč. slova COMPASS ; tokamak ; density limit disruptions ; secondary instability 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 85013910576 Anotace Density limit disruptions (DLDs) have been observed in high density tokamak plasmas. It is important to understand the dynamics of the DLDs so that better mitigation strategies can be developed. In this work, following detection in JET of a secondary instability (SI) to the m/n = 2/1 MHD mode in the precursor of DLD, we analyse the evolution of the magnetic island in COMPASS DLD to look for the presence of this SI just close to the onset of energy quench phase of the disruption. The presence of this SI was associated with the occurrence of minor disruptions preceding the major disruption and with the major disruption itself in [Salzedas, F., 2011]. The coherence observed between the perturbations caused by the SI in the magnetic poloidal flux and in the electron temperature was high, allowing to determine that the SI perturbations came from the same position as the magnetic island. In the work presented here, only the perturbations in the magnetic poloidal flux are analysed. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2018
Počet záznamů: 1