About: Tunnel probes for measurements of the electron and ion temperature in fusion plasmas

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We have developed tunnel probes for localized measurements of the electron and ion temperature in the edge plasma region of smaller tokamaks and stellarators. A normal tunnel probe for Te measurements consists of a metallic tunnel of 5 mm diameter and 5 mm length, with the axis parallel to the magnetic field. One side is open, the other side is closed by a metallic backplate, isolated from the tunnel. If both electrodes are biased negatively, ions flow into the office, and their current is distributed between the tunnel and the backplate. The ratio of the two ion currents is a function of Te. With an additional diaphragm in front of the orifice, the probe becomes ion sensitive, since the electrons are prevented from the tunnel because of their smaller gyroradius, but ions can still reach it. In this way, the perpendicular ion temperature can be derived. By segmenting the tunnel axially into two parts, also an approximate measure for the parallel ion temperature can be found. We have developed tunnel probes for localized measurements of the electron and ion temperature in the edge plasma region of smaller tokamaks and stellarators. A normal tunnel probe for Te measurements consists of a metallic tunnel of 5 mm diameter and 5 mm length, with the axis parallel to the magnetic field. One side is open, the other side is closed by a metallic backplate, isolated from the tunnel. If both electrodes are biased negatively, ions flow into the office, and their current is distributed between the tunnel and the backplate. The ratio of the two ion currents is a function of Te. With an additional diaphragm in front of the orifice, the probe becomes ion sensitive, since the electrons are prevented from the tunnel because of their smaller gyroradius, but ions can still reach it. In this way, the perpendicular ion temperature can be derived. By segmenting the tunnel axially into two parts, also an approximate measure for the parallel ion temperature can be found. (en)
Title	Tunnel probes for measurements of the electron and ion temperature in fusion plasmas Tunnel probes for measurements of the electron and ion temperature in fusion plasmas (en)
skos:prefLabel	Tunnel probes for measurements of the electron and ion temperature in fusion plasmas Tunnel probes for measurements of the electron and ion temperature in fusion plasmas (en)
skos:notation	RIV/61389021:_____/04:00355685!RIV11-GA0-61389021
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA202/03/0786), Z(AV0Z2043910)
http://linked.open...iv/cisloPeriodika	10
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Pánek, Radomír Stöckel, Jan Hron, Martin Adámek, Jiří Ďuran, Ivan
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	590978
http://linked.open...ai/riv/idVysledku	RIV/61389021:_____/04:00355685
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Tokamak; electron temperature; ion temperature; plasma diagnostics (en)
http://linked.open.../riv/klicoveSlovo	ion temperature plasma diagnostics Tokamak electron temperature
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[97927D03154F]
http://linked.open...i/riv/nazevZdroje	Review of Scientific Instruments
http://linked.open...in/vavai/riv/obor	BG
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	15 (xsd:int)
http://linked.open...vavai/riv/projekt	3D structure of the edge turbulence and its control on the Castor tokamak
http://linked.open...UplatneniVysledku	2004
http://linked.open...v/svazekPeriodika	75
http://linked.open...iv/tvurceVysledku	Adámek, Jiří Pánek, Radomír Stöckel, Jan Hron, Martin Gunn, J. P. Schrittwieser, R. Ďuran, Ivan Ionita, C. Martines, E. Van Oost, G. Hrach, R. Vicher, M. Balan, P. Bařina, O. Van Rompuy, T.
http://linked.open...ain/vavai/riv/wos	000224755900283
http://linked.open...n/vavai/riv/zamer	Generování a diagnostika různých typů plazmatu a jejich interakce s ostatními skupenstvími hmoty
issn	0034-6748
number of pages	3 (xsd:int)

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