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Dust remobilization experiments on the COMPASS tokamak.

SYSNO ASEP	0480869
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Dust remobilization experiments on the COMPASS tokamak.
Author(s)	Weinzettl, Vladimír (UFP-V)_{RID, ORCID} Matějíček, Jiří (UFP-V)_{RID, ORCID} Ratynskaia, S. (SE) Tolias, P. (SE) De Angeli, M. (IT) Riva, G. (IT) Dimitrova, Miglena (UFP-V)_ORCID Havlíček, Josef (UFP-V)_{RID, ORCID} Adámek, Jiří (UFP-V)_{RID, ORCID} Seidl, Jakub (UFP-V)_RID Tomeš, Matěj (UFP-V) Cavalier, Jordan (UFP-V)_{RID, ORCID} Imríšek, Martin (UFP-V)_RID Havránek, Aleš (UFP-V)_ORCID Pánek, Radomír (UFP-V)_RID Peterka, Matěj (UFP-V)_{RID, ORCID}
Source Title	Fusion Engineering and Design. - : Elsevier - ISSN 0920-3796 Roč. 124, November (2017), s. 446-449
Number of pages	4 s.
Publication form	Print - P
Action	SOFT 2016: Symposium on Fusion Technology /29./
Event date	05.09.2016 - 09.09.2016
VEvent location	Prague
Country	CZ - Czech Republic
Event type	WRD
Language	eng - English
Country	CH - Switzerland
Keywords	Dust remobilization ; Tungsten ; Disruption ; ELM ; Plasma ; Tokamak
Subject RIV	JF - Nuclear Energetics
OECD category	Nuclear related engineering
R&D Projects	GA14-12837S GA ČR - Czech Science Foundation (CSF)
	GA15-10723S GA ČR - Czech Science Foundation (CSF)
	LM2015045 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	UFP-V - RVO:61389021
UT WOS	000419411900094
EID SCOPUS	85011342779
DOI	10.1016/j.fusengdes.2017.01.044
Annotation	Dust remobilization is one of the not yet fully understood mechanisms connected to the prompt erosion of material from plasma facing surfaces in fusion devices. As a part of a newly initiated cross-machine study, dust remobilization experiments have been performed on the COMPASS tokamak. Tungsten samples with well-defined deposited tungsten dust grains, prepared using a recently developed controlled pre-adhesion method, have been exposed to ELMy H-mode discharges as well as L-mode discharges with forced disruptions. Here we report on the technical aspects of the experiment realization as well as on the experimental results of dust remobilization. The latter is discussed in the light of data from other machines and a physical interpretation is suggested for the observed spatial localization of the dust remobilization activity. Evidence of rearrangement of isolated dust into clusters and strings is also presented.
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