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P: Plasmaphysik
P 8: Magnetic Confinement and Plasma Technology (Poster Session)
P 8.8: Poster
Monday, April 2, 2001, 12:30–15:00, AT2
Microwave interferometer for investigating the plasma parameter at TJ-K — •J. Stoeber1, C. Lechte1, T. Bindemann2, H. Hartfus2, and U. Stroth1 — 1Institut für Experimentelle und Angewandte Physik, CAU Kiel — 2Max-Planck-Institut für Plasmaphysik, EURATOM Ass., Garching
The poster describes the setup of a 1-channel microwave interferometer at TJ-K. Using a heterodyne system we will be able to measure the plasma density unambiguously in a range from 1016m−3 to 1019m−3. The measurements will be compared with results from a Langmuir probe diagnostic and with theoretical estimates from a particle and power balance analysis. The latter yields upper values for the achievable plasma temperature and density depending on the machine parameters, which are natural gas pressure, heating power, magnetic field strength and different working gases (H, He and Ar).