About: Experimental Investigation of Nonlinear Coupling of Lower Hybrid Waves on Tore Supra

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The coupling of lower hybrid waves from the two multijunction-type antennas installed on Tore Supra is investigated. At low power good agreement between the measurement of the power reflection coefficient and the computation with the ALOHA code is found for most cases. Details on electron density measurements, documented from embedded Langmuir probes, are discussed. At high power, departure from the linear theory is clearly seen in many cases. Ponderomotive forces depleting the electron density in a thin plasma layer in front of the antennas are likely to be responsible for the increase of power reflection coefficients measured at the input of the antennas. The decrease of the antenna directivity resulting from weaker wave coupling accounts for the experimental reduction of current drive efficiency The coupling of lower hybrid waves from the two multijunction-type antennas installed on Tore Supra is investigated. At low power good agreement between the measurement of the power reflection coefficient and the computation with the ALOHA code is found for most cases. Details on electron density measurements, documented from embedded Langmuir probes, are discussed. At high power, departure from the linear theory is clearly seen in many cases. Ponderomotive forces depleting the electron density in a thin plasma layer in front of the antennas are likely to be responsible for the increase of power reflection coefficients measured at the input of the antennas. The decrease of the antenna directivity resulting from weaker wave coupling accounts for the experimental reduction of current drive efficiency (en)
Title	Experimental Investigation of Nonlinear Coupling of Lower Hybrid Waves on Tore Supra Experimental Investigation of Nonlinear Coupling of Lower Hybrid Waves on Tore Supra (en)
skos:prefLabel	Experimental Investigation of Nonlinear Coupling of Lower Hybrid Waves on Tore Supra Experimental Investigation of Nonlinear Coupling of Lower Hybrid Waves on Tore Supra (en)
skos:notation	RIV/61389021:_____/12:00386382!RIV13-GA0-61389021
http://linked.open...avai/predkladatel	Ústav fyziky plazmatu AVČR, v.v.i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA202/07/0044), Z(AV0Z20430508)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Petržílka, Václav
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	135577
http://linked.open...ai/riv/idVysledku	RIV/61389021:_____/12:00386382
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	LHwave; plasma; lower hybrid; wave coupling; nonlinear coupling (en)
http://linked.open.../riv/klicoveSlovo	plasma lower hybrid LHwave nonlinear coupling wave coupling
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[C4A0F8F8D73C]
http://linked.open...i/riv/nazevZdroje	Fusion Science and Technology
http://linked.open...in/vavai/riv/obor	BL
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	9 (xsd:int)
http://linked.open...vavai/riv/projekt	Nonlinear Effects Near Antennas in Tokamaks
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	62
http://linked.open...iv/tvurceVysledku	Ekedahl, A. Goniche, M. Hillairet, J. Petržílka, Václav Preynas, M. Berger-By, G. Frincu, B. Litaudon, X. Voyer, D.
http://linked.open...ain/vavai/riv/wos	000308834700003
http://linked.open...n/vavai/riv/zamer	Physical and chemical processes in plasmas and theis applications
issn	1536-1055
number of pages	11 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Experimental Investigation of Nonlinear Coupling of Lower Hybrid Waves on Tore Supra

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