Variations of plasma parameters in unmagnetized and magnetized argon-SF6-electron plasmas

Variations in plasma parameters in both unmagnetized and magnetized plasma environments are reported for argon-SF 6 -electron plasmas with increasing negative ion concentrations epsilon . Characteristic changes in electron temperature, plasma potential and electron saturation current in the region of the experimental magnets with changing epsilon are described and interpreted. Particle density reductions near the magnetic surface are reported. Two-dimensional density profiles of the region adjacent to the experimental magnets are presented for various values of epsilon .