Cataphoretic segregation effects in NeHg and NeXeHg mixtures

摘要

Ion-sampling measurements have been made from the positive columns of dc discharges for 0.01% Hg in Ne at various discharge currents and pressures. Ion species detected included Ne+, Ne2+, Hg+, and Hg2+. Optical measurements of the 5461-Å line intensities of Hg were used to confirm the axial dependencies determined from the ion results. The degree of ionization of Hg was found to be considerably larger than for binary noble-gas mixtures. Measurements in NeXeHg mixtures indicated a normal cataphoretic dependence on discharge current. No complex ions were detected in the tertiary mixture.