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Multichannel laser light scattering diagnostics for density profile measurements in belt pinch plasmas

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3 Author(s)
Protz, R. ; EURATOM‐Association Max‐Planck‐Institut für Plasmaphysik, 8046 Garching b. München, Germany ; Soldner, F. ; Steuer, K.‐H.

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A multichannel laser light scattering system with high sensitivity has been applied to Thomson scattering measurements of electron density profiles by a single laser shot. The problems inherent to radial profile measurements of toroidal plasmas were overcome and the stray light level could be lowered to ne =1013 cm-3 equivalent. This diagnostics was used for optimizing the preheating discharge in the Garching High‐Voltage Belt Pinch at low densities ne?1013 cm-3.

Published in:

Journal of Applied Physics  (Volume:48 ,  Issue: 1 )