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Optical Methods for Plasma Edge Diagnostics in Magnetic Confinement Experiments

Published online by Cambridge University Press:  22 February 2011

E. Hintz and
P. Bogen
E. Hintz
Affiliation:
Institut f. Plasmaphysik, Kernforschungsanlage Jülich / Ass. EURATOM-KFA, Postfach 1913, D-5170 Jülich / Federal Republic of Germany
P. Bogen
Affiliation:
Institut f. Plasmaphysik, Kernforschungsanlage Jülich / Ass. EURATOM-KFA, Postfach 1913, D-5170 Jülich / Federal Republic of Germany
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Abstract

The radial extension of the plasma edge being determined by the ionisation length of the atomic hydrogen, the rtanges of the main plasma parameters to be covered are: 1010 cm-3 < ne <. 1013cm-3 5 eV < Te- < 100 eV, density of neutral particles below 1010 cm-3. Physical quantities to be measured are the electron density ne and temperature Te, the density and temperature (velocity distribution) of hydrogen and of the main impurities (oxygen, carbon, metals). Relying mainly on emission spectroscopy, laser induced fluorescence and atomic beam methods, most of these quantities can be determined with the desired space and time resolution. Experimental arrangements will be described and typical results will be presented.

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