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On the transport of edge localized mode filaments in the tokamak scrape-off layer
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SYSNO ASEP 0540254 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title On the transport of edge localized mode filaments in the tokamak scrape-off layer Author(s) Adámek, Jiří (UFP-V) RID, ORCID
Tskhakaya, David (UFP-V) ORCID
Devitre, A. (CR)
Cavalier, Jordan (UFP-V) RID, ORCID
Horáček, Jan (UFP-V) RID, ORCID
Komm, Michael (UFP-V) RID, ORCID
Šos, Miroslav (UFP-V) ORCID
Bílková, Petra (UFP-V) RID
Böhm, Petr (UFP-V) RID
Seidl, Jakub (UFP-V) RID
Weinzettl, Vladimír (UFP-V) RID, ORCID
Vondráček, Petr (UFP-V) RID, ORCID
Markovič, Tomáš (UFP-V) RID
Hron, Martin (UFP-V) RID, ORCID
Pánek, Radomír (UFP-V) RIDNumber of authors 15 Article number 096014 Source Title Nuclear Fusion. - : Institute of Physics Publishing - ISSN 0029-5515
Roč. 60, č. 9 (2020)Number of pages 5 s. Language eng - English Country AT - Austria Keywords edge-localised mode ; electron temperature ; kinetic simulation ; magnetic-confinement fusion ; plasma Subject RIV BL - Plasma and Gas Discharge Physics OECD category Fluids and plasma physics (including surface physics) R&D Projects LM2015045 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF16_013/0001551 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA20-28161S GA ČR - Czech Science Foundation (CSF) GA19-15229S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support UFP-V - RVO:61389021 UT WOS 000560440000001 EID SCOPUS 85090388795 DOI 10.1088/1741-4326/ab9e14 Annotation Microsecond probe measurements of the electron temperature during the tokamak edge localised mode (ELM) instability show that the peak values significantly exceed those obtained by conventional techniques. The temperatures measured at the plasma facing component (divertor) are around 80% of the initial value (at the pedestal). This challenges the current understanding, where only several percent of the pedestal value are measured at the divertor. Our results imply a negligible energy transfer from the electrons to the ions during the ELM instability, and therefore no associated increase of the ion power loads on the divertor. This observation is supported by the simple analytic free-streaming model, as well as by full kinetic simulations. The energetic ELM ion loads are expected to be one of the main divertor damaging factors - therefore, the obtained results give an optimistic prediction for next generation fusion devices. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2021 Electronic address https://iopscieance.iop.org/article/10.1088/1741-4326/ab9e14/pdf
Number of the records: 1