Počet záznamů: 1
First simultaneous measurements of Reynolds stress with ball-pen and Langmuir probes
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SYSNO ASEP 0476139 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název First simultaneous measurements of Reynolds stress with ball-pen and Langmuir probes Tvůrce(i) Grover, Ondřej (UFP-V) ORCID
Adámek, Jiří (UFP-V) RID, ORCID
Seidl, Jakub (UFP-V) RID
Devitre, A. (CR)
Šos, Miroslav (UFP-V) ORCID
Vondráček, Petr (UFP-V) RID, ORCID
Bílková, Petra (UFP-V) RID
Hron, Martin (UFP-V) RID, ORCIDČíslo článku 063501 Zdroj.dok. Review of Scientific Instruments. - : AIP Publishing - ISSN 0034-6748
Roč. 88, č. 6 (2017)Poč.str. 8 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova COMPASS tokamak ; Electric field effects ; Electric fields ; Langmuir probes ; Magnetoplasma ; Ball-pen probes Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech Obor OECD 2.11 Other engineering and technologies CEP GA15-10723S GA ČR - Grantová agentura ČR GA16-25074S GA ČR - Grantová agentura ČR LM2015045 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UFP-V - RVO:61389021 UT WOS 000404641300015 EID SCOPUS 85020257420 DOI 10.1063/1.4984240 Anotace A new multi-pin probe head was installed and tested at the COMPASS tokamak. The probe head consists of several ball-pen and Langmuir probes in similar geometric configurations, which enables fast, simultaneous measurements of the radial and poloidal electric field components from differences of plasma or floating potentials using appropriately positioned ball-pen or Langmuir probes, respectively. The fast measurements of the radial electric field are compared with other methods
of measuring selected frequency components of the radial electric field. The radial profiles of the Reynolds stress calculated from correlations of electric field fluctuations obtained by either probe type are compared along with their spectral composition. Lower Reynolds stress values are found for Langmuir probes in comparison to ball-pen probes due to negative contributions from higher frequency fluctuations possibly associated with electron temperature fluctuations.Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2018
Počet záznamů: 1