First HIBP results on the WEGA Stellarator
- Max-Planck-Institut fuer Plasmaphysik, EURATOM Association, TI Greifswald, D-17491 Greifswald (Germany)
- Kharkov Institute of Plasma Physics, Kharkov (Ukraine)
- INF RRC 'Kurchatov Institute', Moscow (Russian Federation)
- L.P.M.I.A. Boulevard des Aiguillettes B.P. 239 54506, Vandoeuvre-Les-Nancy cedex (France)
The heavy ion beam probe (HIBP) is an established non perturbing diagnostic for measuring the spatial distributions of plasma potential, density, temperature and poloidal magnetic field (axial current) of magnetically confined fusion plasma. These are determined from the change in the primary ion beam parameters (charge, intensity and trajectory) passing through a plasma volume due to collisions with electrons and interactions with the confining magnetic field. A heavy ion beam probe plasma diagnostic system has been installed and tested on the WEGA stellarator in Greifswald, Germany in 2006-2007. The WEGA HIBP operates with a beam of singly charged sodium ions with an energy of up to 60 keV, ion current up to 100 {mu}A, and beam diameter of 5-6 mm in the confined plasma region. Plasma experiments with the HIBP diagnostic system were carried out at a magnetic field strength of B{sub 0} = 0.489 T. In the experiments, an argon plasma was heated with ECRH at 28 GHz. In this work the first plasma potential and total current profile measurements results are presented. This work was supported by STCU P-202 project.
- OSTI ID:
- 21136915
- Journal Information:
- AIP Conference Proceedings, Vol. 993, Issue 1; Conference: PLASMA 2007: International conference on research and applications of plasmas; 4. German-Polish conference on plasma diagnostics for fusion and applications; 6. French-Polish seminar on thermal plasma in space and laboratory, Greifswald (Germany), 16-19 Oct 2007; Other Information: DOI: 10.1063/1.2909118; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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