Experimental Stark Broadening Parameters for Ar II and Xe II Lines

Abstract

Stark broadening parameters of 20 Ar II lines from the 4s-4p and 3d-4p transition arrays and of 19 Xe II lines from the 6s-6p and 5d-6p transition arrays were measured. Additional broadening mechanisms other than Stark effect were taken into account. A wall stabilized stationary cascade arc served as plasma source. Electron densities were determined with high precision from independent measurements with a two-wavelengths Michelson interferometer. The results are compared to experimental data from literature and semiempirical calculations.