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INVESTIGATION OF RUNAWAY ELECTRONS VIA CHERENKOV DETECTOR
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SYSNO ASEP 0486240 Document Type A - Abstract R&D Document Type The record was not marked in the RIV R&D Document Type Není vybrán druh dokumentu Title INVESTIGATION OF RUNAWAY ELECTRONS VIA CHERENKOV DETECTOR Author(s) Čeřovský, Jaroslav (UFP-V)
Mlynář, Jan (UFP-V) RID
Ficker, Ondřej (UFP-V) ORCID
Weinzettl, Vladimír (UFP-V) RID, ORCID
Tomešová, Eva (UFP-V) ORCID
Jakubowski, M. (PL)
Malinowski, K. (PL)
Rabinski, M. (PL)
Svoboda, V. (CZ)Source Title Proceedings, 19th Conference of Czech and Slovak Physicists. - Prešov : Slovenská fyzikálna spoločnosť - Česká fyzikální společnost, 2017 - ISBN N Number of pages 2 s. Action Conference of Czech and Slovak Physicists/19./ Event date 04.09.2017 - 07.09.2017 VEvent location Prešov Country SK - Slovakia Event type EUR Language eng - English Country SK - Slovakia Keywords Cherenkov detector ; COMPASS tokamak Subject RIV BL - Plasma and Gas Discharge Physics OECD category Fluids and plasma physics (including surface physics) Institutional support UFP-V - RVO:61389021 Annotation High energy electrons - so called runaway electrons - are generated in tokamaks under particular conditions. These electrons are accelerated in the electric field of tokamak almost without collisions with thermal particles nearly to the speed of light and present a serious threat to the future fusion reactors. Detectors based on the Cherenkov radiation have been developed and implemented for the last couple of years. Such a detector may provide high temporal and well define position of measurements. A unique feature of Cherenkov type detector lies in the possibility of direct observation of runaway electron and therefore it is not an indirect method based on measurements of secondary X-rays and neutrons. Runaway electron (RE) studies are intensively carried out at the COMPASS tokamak. Main focus of this work is the analysis of data from Cherenkov detector and characterization of runaway electrons under different conditions. Post-disruption runaway electron beam, link between losses of runaway electrons and MHD instabilities and radial dependence of Cherenkov radiation are investigated. Runaway electron studies are also performed on GOLEM tokamak, focusing on the study of RE generation and characterization of resulting HXR radiation. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2018
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