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Investigation of Impurity Dynamics at GOL-3 Facility

S. V. Polosatkin, A. V. Burdakov, V. Piffl, V. V. Postupaev, V. Weinzettl

Fusion Science and Technology / Volume 47 / Number 1T / January 2005 / Pages 267-269

Technical Paper / Open Magnetic Systems for Plasma Confinement /

Dynamics of light impurities at multimirror trap GOL-3 was studied using imaging spectroscopy diagnostics in VUV and visible spectral range. The results of impurity balance and transport simulation as well as comparison with measurements are presented in this paper. Concentration of impurities in plasma and diffusion coefficient are found out from the measurements. Suitability using VUV and XUV spectroscopy for measuring main plasma parameters is considered.

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