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Particle-in-cell simulations of Langmuir probes at COMPASS tokamak.
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SYSNO ASEP 0481895 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Particle-in-cell simulations of Langmuir probes at COMPASS tokamak. Author(s) Podolník, Aleš (UFP-V) ORCID
Komm, Michael (UFP-V) RID, ORCID
Adámek, Jiří (UFP-V) RID, ORCID
Háček, Pavel (UFP-V) RID, ORCID
Krbec, Jaroslav (UFP-V)
Dejarnac, Renaud (UFP-V) RID, ORCID
Pánek, Radomír (UFP-V) RID
Gunn, J. P. (FR)Article number P1.110 Source Title EPS 2017: 44th European Physical Society Conference on Plasma Physics, 41F. - Mulhouse : European Physical Society, 2017 / Fajardo M. ; Westerhof E. ; Riconda C. ; Melzer A. ; Bret A. ; Dromey B. - ISBN 979-10-96389-07 Number of pages 4 s. Publication form Online - E Action EPS 2017 Conference on Plasma Physics/44./ Event date 26.06.2017 - 30.06.2017 VEvent location Belfast Country IE - Ireland Event type EUR Language eng - English Country FR - France Keywords tokamak ; COMPOSS ; Langmuir probes Subject RIV BL - Plasma and Gas Discharge Physics OECD category Fluids and plasma physics (including surface physics) R&D Projects GA16-14228S GA ČR - Czech Science Foundation (CSF) 8D15001 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LM2015045 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UFP-V - RVO:61389021 Annotation Langmuir probes are amongst the most versatile tools for plasma diagnostics for both magnetized and unmagnetized plasmas. Analysis of I–V characteristics measured by the probe can in principle yield values of electron temperature Te, floating potential Vfl and electron density ne as well as electron energy distribution function. However, correct values of these quantities
can be determined only when all the instrumental effects on measured data are addressed. For magnetized plasma in the scrape-off layer of tokamak discharges, the prevalent influence is the sheath expansion due to presence of strong magnetic field. This effect is taken into account by introduction of fourth parameter to fit of the I–V curve [1].Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2018
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