Estimation of the runaway electron current during the flattop phase in COMPASS.

Tomešová, Eva; Urban, Jakub; Ficker, Ondřej; Mlynář, Jan; Vlainić, M.; Papřok, Richard; Varju, Jozef; Weinzettl, Vladimír; Čeřovský, J.; Farník, M.; Pokol, G.; Plyusnin, V.; Havlíček, Josef; Pánek, Radomír; Hron, Martin

Number of the records: 1

Estimation of the runaway electron current during the flattop phase in COMPASS.

1.

SYSNO ASEP	0482695
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	Estimation of the runaway electron current during the flattop phase in COMPASS.
Author(s)	Tomešová, Eva (UFP-V)_ORCID Urban, Jakub (UFP-V)_RID Ficker, Ondřej (UFP-V)_ORCID Mlynář, Jan (UFP-V)_RID Vlainić, M. (BE) Papřok, Richard (UFP-V)_RID Varju, Jozef (UFP-V)_ORCID Weinzettl, Vladimír (UFP-V)_{RID, ORCID} Čeřovský, J. (CZ) Farník, M. (CZ) Pokol, G. (HU) Plyusnin, V. (PT) Havlíček, Josef (UFP-V)_{RID, ORCID} Pánek, Radomír (UFP-V)_RID Hron, Martin (UFP-V)_{RID, ORCID}
Article number	P4.141
Source Title	EPS 2017: 44th European Physical Society Conference on Plasma Physics, 41F. - Mulhouse : European Physical Society, 2017 / Fajardo M. ; Westerhof E. ; Riconda C. ; Melzer A. ; Bret A. ; Dromey B. - ISBN 979-10-96389-07
Number of pages	4 s.
Publication form	Online - E
Action	EPS 2017 Conference on Plasma Physics/44./
Event date	26.06.2017 - 30.06.2017
VEvent location	Belfast
Country	IE - Ireland
Event type	EUR
Language	eng - English
Country	FR - France
Keywords	METIS ; RE current ; non-disruptive phase
Subject RIV	BL - Plasma and Gas Discharge Physics
OECD category	Fluids and plasma physics (including surface physics)
R&D Projects	LG14002 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	LM2015045 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	8D15001 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	UFP-V - RVO:61389021
Annotation	Prevention and mitigation of the runaway electron (RE) beam is a topic in urgent need of investigation, because RE beam poses a serious threat for safe operation of tokamaks [1], as it can cause severe damage of the plasma facing components. Combination of numerical simulations and measurements provided on compact sized tokamaks as COMPASS (ITER-like shape, R0 = 0.56 m, a = 0.23 m, BT = 1.15 T and Ip 400 kA) [2] can help to better understand the RE beam formation, evolution and termination. Non-disruptive COMPASS discharges with a special request on Ip waveform with drops were selected for testing possibility of estimation of a fraction of plasma current carried by RE in the plasma current flattop phase. A method estimating runaway current in non-disruptive part of plasma discharge will be a useful tool for a deeper insight into the not fully understood of RE physics.
Workplace	Institute of Plasma Physics
Contact	Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975
Year of Publishing	2018

Number of the records: 1