Počet záznamů: 1
Application of the triple-probe technique to magnetized plasmas
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SYSNO ASEP 0566725 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Application of the triple-probe technique to magnetized plasmas Tvůrce(i) Dimitrova, Miglena (UFP-V) ORCID
Popov, Tsv.K. (BG)
Dejarnac, Renaud (UFP-V) RID, ORCID
Kovačič, J. (SI)
Ivanova, P. (BG)
Gyergyek, T. (SI)
Losada, U. (ES)
Hidalgo, C. (ES)
Pánek, Radomír (UFP-V) RID
Stöckel, Jan (UFP-V) RIDCelkový počet autorů 10 Číslo článku 015009 Zdroj.dok. Plasma Physics and Controlled Fusion. - : Institute of Physics Publishing - ISSN 0741-3335
Roč. 65, č. 1 (2023)Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova plasma diagnostics-probes ; triple-probe technique ; electron temperature Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech Obor OECD Fluids and plasma physics (including surface physics) CEP LM2018117 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy EF16_019/0000768 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Omezený přístup Institucionální podpora UFP-V - RVO:61389021 UT WOS 000894064500001 EID SCOPUS 85144278381 DOI 10.1088/1361-6587/aca5b1 Anotace The triple-probe technique (TPT) is a diagnostic widely used to determine the electron temperature in various devices and plasma conditions. It was developed for measurements in low-pressure gas-discharge plasmas in the absence of a magnetic field. This paper presents a comparison of the experimental results obtained by swept Langmuir probe (LP) measurements with those obtained by the TPT in magnetized plasmas in three experimental machines with different magnetic field magnitudes (0.01-1.15 T). The reliability of the triple-probe results for the electron temperature in tokamak plasmas at higher magnetic fields is discussed. It was found that the larger the magnetic field, the more the TPT overestimates the electron temperature compared with single swept LPs. The explanation proposed in this paper is based on a shift in the floating potential towards the plasma potential in the presence of a magnetic field, yielding a more positive voltage measured by the TPT and therefore higher electron temperatures. Using the extended formula for the electron probe current in the presence of a magnetic field a correction factor is derived such that the TPT yields a temperature similar to that of the swept LP techniques. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2023 Elektronická adresa https://iopscience.iop.org/article/10.1088/1361-6587/aca5b1
Počet záznamů: 1