Abstract
An experiment for measuring electron density spatially resolved with high time resolution is described. The experiment was performed side on on a Theta pinch plasma. The light source (TEA-CO2 laser), the window problem, the area detector for the interferogram are discussed. The sensitivity of the technique is 1–2×1015 electrons/cm2. Some examples of measured density profiles show that the method may be used effectively on toroidal plasma machines.
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This work was performed as part of the joint research program between the Max-Planck-Institut für Plasmaphysik, Garching and Euratom.
More detailed available as laboratory report No. IPP 1/117 (May 1971).
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Därr, A., Decker, G. & Röhr, H. Side on interferometry at 10.6 μm of Theta pinch plasmas. Z. Physik 248, 121–129 (1971). https://doi.org/10.1007/BF01395348
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DOI: https://doi.org/10.1007/BF01395348