Observation of geodesic acoustic mode-like oscillations on COMPASS

Seidl, Jakub; Hron, Martin; Adámek, Jiří; Vondráček, Petr; Horáček, Jan; Hidalgo, C.; Melnikov, A.; Eliseev, L.; Markovič, Tomáš; Stöckel, Jan; Basu, D.; Háček, Pavel; Havlíček, Josef; Imríšek, Martin; Kovařík, Karel; Weinzettl, Vladimír; Pánek, Radomír

Number of the records: 1

Observation of geodesic acoustic mode-like oscillations on COMPASS

1.

SYSNO ASEP	0453356
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	Observation of geodesic acoustic mode-like oscillations on COMPASS
Author(s)	Seidl, Jakub (UFP-V)_RID Hron, Martin (UFP-V)_{RID, ORCID} Adámek, Jiří (UFP-V)_{RID, ORCID} Vondráček, Petr (UFP-V)_{RID, ORCID} Horáček, Jan (UFP-V)_{RID, ORCID} Hidalgo, C. (ES) Melnikov, A. (RU) Eliseev, L. (RU) Markovič, Tomáš (UFP-V)_RID Stöckel, Jan (UFP-V)_RID Basu, D. (CA) Háček, Pavel (UFP-V)_{RID, ORCID} Havlíček, Josef (UFP-V)_{RID, ORCID} Imríšek, Martin (UFP-V)_RID Kovařík, Karel (UFP-V)_{RID, ORCID} Weinzettl, Vladimír (UFP-V)_{RID, ORCID} Pánek, Radomír (UFP-V)_RID
Source Title	EPS 2015:42nd European Physical Society Conference on Plasma Physics, 39E. - Mulhouse : European Physical Society, 2015 - ISBN 2-914771-98-3
Pages	p4.103-p4.103
Number of pages	4 s.
Publication form	Online - E
Action	EPS 2015 Conference on Plasma Physics/42./
Event date	22.06.2015-26.06.2015
VEvent location	Lisbon
Country	PT - Portugal
Event type	EUR
Language	eng - English
Country	PT - Portugal
Keywords	plasma ; tokamak ; geodesic acoustic mode ; zonal flows
Subject RIV	BL - Plasma and Gas Discharge Physics
R&D Projects	GAP205/12/2327 GA ČR - Czech Science Foundation (CSF)
	GA15-10723S GA ČR - Czech Science Foundation (CSF)
	LM2011021 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	UFP-V - RVO:61389021
EID SCOPUS	84979650083
Annotation	We present observation of plasma potential oscillations on the COMPASS tokamak detected in a form of long range correlations between pair of reciprocating probes. The oscillations exhibit several characteristic features of geodesic acoustic mode (GAM). The probe diagnostics were supplemented by magnetic pick-up coils with full poloidal coverage at several toroidal locations and toroidal and poloidal structure of oscillations of magnetic field associated with the mode are discussed. Moreover, change of frequency and amplitude of the oscillations is observed during sawtooth crashe cycle and during penetration of externally applied magnetic perturbations into the plasma.
Workplace	Institute of Plasma Physics
Contact	Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975
Year of Publishing	2016

Number of the records: 1