About: ELM-induced melting: assessment of shallow melt layer damage and the power handling capability of tungsten in a linear plasma device

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About: ELM-induced melting: assessment of shallow melt layer damage and the power handling capability of tungsten in a linear plasma device Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Tungsten samples were exposed to combined steady state and edge localised mode transient replication experiments in a linear plasma device; either in combined hydrogen plasma and high powered laser exposures at Magnum-PSI or steady state hydrogen plasma and superimposed plasma pulses created using a capacitor bank in Pilot-PSI. With each transient the surface temperature of the sample was elevated above the melting point creating a shallow molten layer. An apparent heat transport reduction in the near surface layer increases as a function of pulse number. Scanning electron microscopy analysis of the samples shows large scale grain enlargement down to several hundred to thousand micrometers below the surfaře as well as melt layer motion due to evaporative recoil from the molten surface. In the ITER divertor this would lead to severe embrittlement and enhanced erosion of the tungsten surfaře leading to reduced lifetimes for the plasma facing material. Tungsten samples were exposed to combined steady state and edge localised mode transient replication experiments in a linear plasma device; either in combined hydrogen plasma and high powered laser exposures at Magnum-PSI or steady state hydrogen plasma and superimposed plasma pulses created using a capacitor bank in Pilot-PSI. With each transient the surface temperature of the sample was elevated above the melting point creating a shallow molten layer. An apparent heat transport reduction in the near surface layer increases as a function of pulse number. Scanning electron microscopy analysis of the samples shows large scale grain enlargement down to several hundred to thousand micrometers below the surfaře as well as melt layer motion due to evaporative recoil from the molten surface. In the ITER divertor this would lead to severe embrittlement and enhanced erosion of the tungsten surfaře leading to reduced lifetimes for the plasma facing material. (en)
Title	ELM-induced melting: assessment of shallow melt layer damage and the power handling capability of tungsten in a linear plasma device ELM-induced melting: assessment of shallow melt layer damage and the power handling capability of tungsten in a linear plasma device (en)
skos:prefLabel	ELM-induced melting: assessment of shallow melt layer damage and the power handling capability of tungsten in a linear plasma device ELM-induced melting: assessment of shallow melt layer damage and the power handling capability of tungsten in a linear plasma device (en)
skos:notation	RIV/61389021:_____/14:00427950!RIV15-AV0-61389021
http://linked.open...avai/riv/aktivita	I
http://linked.open...avai/riv/aktivity	I
http://linked.open...iv/cisloPeriodika	T159
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Matějíček, Jiří Chráska, Tomáš
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky plazmatu AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	14354
http://linked.open...ai/riv/idVysledku	RIV/61389021:_____/14:00427950
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	melting; tungsten; ELMs; divertor; ITER; DEMO (en)
http://linked.open.../riv/klicoveSlovo	DEMO ITER ELMs tungsten divertor melting
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[06B65611AE5B]
http://linked.open...i/riv/nazevZdroje	Physica Scripta
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Chráska, Tomáš Matějíček, Jiří De Temmerman, G. Morgan, T. W. de Kruif, T. M. van Eden, G. G. van den Berg, A.
http://linked.open...ain/vavai/riv/wos	000334847800023
issn	0031-8949
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/0031-8949/2014/T159/014022

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