Abstract
Collisional and Doppler linewidths (Δv C and Δv D ) of the 469.4 nm and 473.9 nm Kr ion lines were measured in a He-Kr hollow cathode discharge using Fabry-Perot technique. A linear dependence of Δv C on He pressure was found for both lines. Significant differences were found between the temperature values deduced from the Δv D -s of the two lines, and an unexpected temperature dependence of the broadening parameter for the Kr+ 469 nm line was also observed. The temperature difference between the two lines is explained by excitation of the upper level of the 469 nm line by second kind collisions between metastable He atoms and ground-state Kr ions, while the temperature dependence of the broadening parameter of the Kr+ 469 nm line is suggested to be due to the inverse process.
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Csillag, L., Jánossy, M. & Rózsa, K. Linewidth studies on the Kr+ 469.4 nm and 473.9 nm lines excited in a helium-krypton hollow cathode discharge. Appl. Phys. B 52, 90–95 (1991). https://doi.org/10.1007/BF00357661
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DOI: https://doi.org/10.1007/BF00357661