Absorption measurements on copper, silver, tin, gold, and bismuth in the spectral range 50–340 Å were performed using the synchrotron radiation of the 6-GeV electron synchrotron DESY. The results are compared with previous measurements and theoretical predictions. A calculation of the partial oscillator sums from the available data gives rough agreement with the theoretically expected values.
R. Haensel, C. Kunz, T. Sasaki, and B. Sonntag, "Absorption Measurements of Copper, Silver, Tin, Gold, and Bismuth in the Far Ultraviolet," Appl. Opt. 7, 301-306 (1968)