IShTAR plasma operation and diagnostics

POSTER

Abstract

IShTAR (Ion cyclotron Sheath Test ARrangement) is a linear magnetized plasma test facility for RF sheaths studies. The device consists of a cylindrical vacuum vessel with a diameter of 1 m and length of 1.1 m. The plasma is created by an external cylindrical plasma source equipped with a helical antenna. Progress is reported on the plasma optimization and electric field measurements. An interferometer and probes have recently been added to the IShTAR suite of diagnostics. A sensitivity of the electron density to the magnetic topology has been observed, possibly related to the helicon wave propagation. E-field measurements by Passive Optical Emission Spectroscopy were achieved at two viewing locations: a DC biased electrode and the ICRF antenna. The installation of an active Doppler-Free Saturation Spectroscopy diagnostic has started.

*This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission.

Presenters

  • Kristel Crombe

    • LPP/ERM-KMS, Brussels, Ghent University, Belgium

Authors

  • Kristel Crombe

    • LPP/ERM-KMS, Brussels, Ghent University, Belgium

  • Ana Kostic

    • Ghent University, Belgium, IPP Garching, Germany

  • Anton Nikiforov

    • Ghent University, Belgium

  • Roman Ochoukov

    • IPP Garching, Germany

  • Ilya Shesterikov

    • IPP Garching, Germany

  • Mari Usoltceva

    • IPP Garching, Germany, Ghent University, Belgium

  • Helmut Faugel

    • IPP Garching, Germany

  • Helmut Fuenfgelder

    • IPP Garching, Germany

  • Jean-Marie Noterdaeme

    • IPP Garching, Germany, Ghent University, Belgium

  • Stephane Heuraux

    • Universite de Lorraine, Nancy, France