Ana Kostc
(Ghent University, Faculty of Engineering and Architecture/ Department of Applied Physics/ Research Unit Nuclear Fusion)
Ralph Dux
(Max-Planck-Institut für Plasmaphysik)
Kristel Crombé
(Department of Applied Physics, Ghent University)
Roman Ochoukov
(Max-Planck-Institut für Plasmaphysik)
Anton Nikiforov
(Department of Applied Physics, Ghent University)
Ilya Shesterikov
(Max-Planck-Institut für Plasmaphysik)
Elijah Martin
(Oak Ridge National Laboratory)
Jean-Marie Noterdaeme
(Department of Applied Physics, Ghent University)
IShTAR is a linear device dedicated to the investigation of the edge plasma - ICRF antenna interactions in tokamak edge-like conditions and serves as a platform for a diagnostic development for measuring the electric fields in the vicinity of ICRF antennas. We present here our progress in the development of an optical emission spectroscopy method for measuring the electric fields which concentrates on the changes of the He-I spectral line profiles introduced by the external electrical field, i.e. the Stark effect. To be able to fully control the operating parameters, at the first stage of the study the measurements are conducted on a DC-biased planar electrode installed in the centre of the plasma column in IShTAR’s helicon plasma source. At the second stage, the measurements are performed in the vicinity of IShTAR’s ICRF antenna.
Ana Kostc
(Ghent University, Faculty of Engineering and Architecture/ Department of Applied Physics/ Research Unit Nuclear Fusion)
Ralph Dux
(Max-Planck-Institut für Plasmaphysik)
Kristel Crombé
(Department of Applied Physics, Ghent University)
Roman Ochoukov
(Max-Planck-Institut für Plasmaphysik)
Anton Nikiforov
(Department of Applied Physics, Ghent University)
Ilya Shesterikov
(Max-Planck-Institut für Plasmaphysik)
Elijah Martin
(Oak Ridge National Laboratory)
Jean-Marie Noterdaeme
(Department of Applied Physics, Ghent University)
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