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Measurements of plasma parameters in the direct current discharge for isotope separation

The isotope separation phenomenon was observed in a DC discharge of rare gases through a thin capillary. We measured ion density and electron temperature in the positive column of neon and krypton plasmas to understand the mechanisms of isotope separation. We obtained isotope separation factors 1.25 for and 1.6 for for the current densities up to . It is shown that one of the presented theories, `ion wind', satisfactorily explains the experimental results.