Počet záznamů: 1
Tunnel probes for measurements of the electron and ion temperature in fusion plasmas
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SYSNO ASEP 0355685 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Tunnel probes for measurements of the electron and ion temperature in fusion plasmas Tvůrce(i) Gunn, J. P. (FR)
Schrittwieser, R. (AT)
Balan, P. (AT)
Ionita, C. (AT)
Stöckel, Jan (UFP-V) RID
Adámek, Jiří (UFP-V) RID, ORCID
Ďuran, Ivan (UFP-V) RID, ORCID
Hron, Martin (UFP-V) RID, ORCID
Pánek, Radomír (UFP-V) RID
Bařina, O. (CZ)
Hrach, R. (CZ)
Vicher, M. (CZ)
Van Oost, G. (BE)
Van Rompuy, T. (BE)
Martines, E. (IT)Zdroj.dok. Review of Scientific Instruments. - : AIP Publishing - ISSN 0034-6748
Roč. 75, č. 10 (2004), s. 4328-4330Poč.str. 3 s. Forma vydání web - web Akce Topical Conference on High-Temperature Plasma Diagnostics/15th./ Datum konání 19.04.2004-22.04.2004 Místo konání San Diego Země US - Spojené státy americké Typ akce WRD Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova Tokamak ; electron temperature ; ion temperature ; plasma diagnostics Vědní obor RIV BG - Jaderná, atomová a mol. fyzika, urychlovače CEP GA202/03/0786 GA ČR - Grantová agentura ČR CEZ AV0Z2043910 - UFP-V UT WOS 000224755900283 DOI Anotace 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. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2011
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