EEDF in the COMPASS open divertor during a detachment experiment.

0481897 - ÚFP 2018 RIV FR eng C - Conference Paper (international conference)
Dimitrova, Miglena - Popov, Tsv.K. - Dejarnac, Renaud - Komm, Michael - Cavalier, Jordan - Seidl, Jakub - Krbec, Jaroslav - Stöckel, Jan - Weinzettl, Vladimír - Háček, Pavel - Pánek, Radomír
EEDF in the COMPASS open divertor during a detachment experiment.
EPS 2017: 44th European Physical Society Conference on Plasma Physics. Vol. 41F. Mulhouse: European Physical Society, 2017 - (Fajardo, M.; Westerhof, E.; Riconda, C.; Melzer, A.; Bret, A.; Dromey, B.), č. článku P2.105. Europhysics Conference Abstracts (ECA). ISBN 979-10-96389-07.
[EPS 2017 Conference on Plasma Physics/44./. Belfast (IE), 26.06.2017-30.06.2017]
R&D Projects: GA ČR(CZ) GA16-24724S; GA MŠMT(CZ) LM2015045; GA MŠMT(CZ) 8D15001
Institutional support: RVO:61389021
Keywords : COMPASS * tokamak
OECD category: Fluids and plasma physics (including surface physics)

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).
Permanent Link: http://hdl.handle.net/11104/0277355