Experimental Stark Broadening Parameters for Ar II and Xe II Lines

Stark broadening parameters of 20 Ar II lines from the 4 s -4 p and 3 d -4 p transition arrays and of 19 Xe II lines from the 6 s -6 p and 5 d -6 p 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.