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Statements

Subject Item
n2:RIV%2F61389021%3A_____%2F12%3A00377643%21RIV13-GA0-61389021
rdf:type
n13:Vysledek skos:Concept
rdfs:seeAlso
http://iopscience.iop.org/0741-3335/54/7/074005/pdf/0741-3335_54_7_074005.pdf
dcterms:description
We present in this paper modelling of the JET scrape-off layer (SOL) including direct SOL ionization by launched lower hybrid (LH) waves. For that purpose, the two-dimensional fluid code EDGE2D-NIMBUS was modified in order to account for possible enhanced ionization in the SOL, due to the LH power absorbed by the electrons in a layer extending in the radial direction from the launcher. By taking the direct LH SOL ionization into account, the observed modification of the density in front of the LH antenna during a LH power and gas injection, can be explained. The JET grill private SOL limiters, acting as sinks for the particles, are also included in the model. We compare the efficiency of gas puffing from the top and the outer mid-plane for SOL density enhancement and improvement in LH coupling. The observed reduction of the temporal variation of the LH wave reflection coefficient and of measured saturated currents in the SOL during ELMs, is explained. The density depletion We present in this paper modelling of the JET scrape-off layer (SOL) including direct SOL ionization by launched lower hybrid (LH) waves. For that purpose, the two-dimensional fluid code EDGE2D-NIMBUS was modified in order to account for possible enhanced ionization in the SOL, due to the LH power absorbed by the electrons in a layer extending in the radial direction from the launcher. By taking the direct LH SOL ionization into account, the observed modification of the density in front of the LH antenna during a LH power and gas injection, can be explained. The JET grill private SOL limiters, acting as sinks for the particles, are also included in the model. We compare the efficiency of gas puffing from the top and the outer mid-plane for SOL density enhancement and improvement in LH coupling. The observed reduction of the temporal variation of the LH wave reflection coefficient and of measured saturated currents in the SOL during ELMs, is explained. The density depletion
dcterms:title
JET scrape-off-layer ionization at lower hybrid wave launching JET scrape-off-layer ionization at lower hybrid wave launching
skos:prefLabel
JET scrape-off-layer ionization at lower hybrid wave launching JET scrape-off-layer ionization at lower hybrid wave launching
skos:notation
RIV/61389021:_____/12:00377643!RIV13-GA0-61389021
n13:predkladatel
n14:ico%3A61389021
n3:aktivita
n15:P
n3:aktivity
P(GA202/07/0044), P(GAP205/10/2055), P(LG11018)
n3:cisloPeriodika
7
n3:dodaniDat
n5:2013
n3:domaciTvurceVysledku
n18:9984445 n18:5925665
n3:druhVysledku
n11:J
n3:duvernostUdaju
n9:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
143715
n3:idVysledku
RIV/61389021:_____/12:00377643
n3:jazykVysledku
n16:eng
n3:klicovaSlova
LH wave; plasma; LH grill; electrons; SOL; JET; ELMs
n3:klicoveSlovo
n6:ELMs n6:LH%20grill n6:LH%20wave n6:SOL n6:electrons n6:JET n6:plasma
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[3DC3A4A81A93]
n3:nazevZdroje
Plasma Physics and Controlled Fusion
n3:obor
n19:BL
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
13
n3:projekt
n10:GAP205%2F10%2F2055 n10:GA202%2F07%2F0044 n10:LG11018
n3:rokUplatneniVysledku
n5:2012
n3:svazekPeriodika
54
n3:tvurceVysledku
Mayoral, M.-L. Ongena, J. Parail, V. Jacquet, P. Mailloux, J. Stamp, M. Silva, C. Belo, P. Petržílka, Václav Fuchs, Vladimír Ekedahl, A. Corrigan, G. Goniche, M.
n3:wos
000305891500006
s:issn
0741-3335
s:numberOfPages
11
n20:doi
10.1088/0741-3335/54/7/074005