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EEDF in the COMPASS open divertor during a detachment experiment.
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SYSNO ASEP 0481897 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title EEDF in the COMPASS open divertor during a detachment experiment. Author(s) Dimitrova, Miglena (UFP-V) ORCID
Popov, Tsv.K. (BG)
Dejarnac, Renaud (UFP-V) RID, ORCID
Komm, Michael (UFP-V) RID, ORCID
Cavalier, Jordan (UFP-V) RID, ORCID
Seidl, Jakub (UFP-V) RID
Krbec, Jaroslav (UFP-V)
Stöckel, Jan (UFP-V) RID
Weinzettl, Vladimír (UFP-V) RID, ORCID
Háček, Pavel (UFP-V) RID, ORCID
Pánek, Radomír (UFP-V) RIDArticle number P2.105 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 COMPASS ; tokamak Subject RIV BL - Plasma and Gas Discharge Physics OECD category Fluids and plasma physics (including surface physics) R&D Projects GA16-24724S GA ČR - Czech Science Foundation (CSF) LM2015045 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) 8D15001 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UFP-V - RVO:61389021 Annotation The COMPASS tokamak is equipped with a poloidal array of 39 Langmuir probes (LP) embedded in the divertor tiles [1, 2]. This work presents the results from swept probe measurements in a D-shaped, L-mode discharge (shot #12836), with a constant toroidal magnetic field BT = 1.15 T and a plasma current Ipl =160 kA. In order to reach detachment,
the plasma density (indicated by the line-average electron density, ne avr) was ramped up during the discharge. The ne
avr varied from 3 to 8×1019 m-3. The current-voltage characteristics measured at different ne
avr were processed using the first-derivative probe technique [3, 4] to retrieve the plasma potential and the electron energy distribution function (EEDF).Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2018
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