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Fast observations of post-disruption runaway electron beams at the COMPASS tokamak
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SYSNO ASEP 0508583 Document Type A - Abstract R&D Document Type O - Ostatní Title Fast observations of post-disruption runaway electron beams at the COMPASS tokamak Author(s) Weinzettl, Vladimír (UFP-V) RID, ORCID
Ficker, Ondřej (UFP-V) ORCID
Cavalier, Jordan (UFP-V) RID, ORCID
Vlainic, M. (RS)
Imríšek, Martin (UFP-V) RID
Mlynář, Jan (UFP-V) RID
Tomešová, Eva (UFP-V) ORCID
Čeřovský, Jaroslav (UFP-V)
Farník, Michal (UFP-V)
Naydenkova, Diana (UFP-V) RID, ORCID
Háček, Pavel (UFP-V) RID, ORCID
Hron, Martin (UFP-V) RID, ORCID
Pánek, Radomír (UFP-V) RIDNumber of authors 13 Source Title Europhysics Conference Abstracts. - Milán : European Physical Society, 2019 - ISBN 979-10-96389-11-7 Number of pages 1 s. Publication form Online - E Action 46th European Physical Society Conference on Plasma Physics Event date 08.07.2019 - 12.07.2019 VEvent location Milán Country IT - Italy Event type EUR Language eng - English Country IT - Italy Keywords RE ; COMPASS ; tomography Subject RIV BL - Plasma and Gas Discharge Physics OECD category Fluids and plasma physics (including surface physics) R&D Projects GA18-02482S GA ČR - Czech Science Foundation (CSF) Institutional support UFP-V - RVO:61389021 Annotation Energetic electrons, which are foreseen to be produced during disruptions in ITER, represent a potentially dangerous threat for plasma facing components. Therefore, behaviour ofrunaway electron (RE) beams has been studied at the COMPASS tokamak in the frame of dedicated experiments focused on their generation and subsequent mitigation, mainlyusing massive gas injection. In this contribution, we introduce fast observations of the generated RE beams done by different types of high-speed cameras, AXUV detectors as aproxy of fast bolometers, ECE and hard X-ray and photo-neutron detectors. Time dependence and spatial localization of RE have been investigated with respect to severalaspects: formation of the beam, with a special attention to observed filamentary and quiet phases of the beam existence, interaction of the beam with the background plasma as well aswith the tokamak control system, beam extinction by slow decay or by sudden termination. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2020 Electronic address http://ocs.ciemat.es/EPS2019ABS/pdf/P4.1055.pdf
Number of the records: 1