Abstract

New measurements of the Cu-like and Zn-like resonance lines classified as 4sS21/2-4pP21/2,3/2 and 4s2S10-4s4pP1,31 transitions, respectively, have been made in the range of 90–335 Å with a wavelength uncertainty of ±0.005 Å for elements Pd to Dy. The light source was the TEXT tokamak at the Fusion Research Center in Austin, Texas. The transition energies for the Zn-like lines are compared with values calculated with the multiconfiguration Dirac–Fock code of Desclaux [ Phys. Rev. A 42, 5139 ( 1990)], including QED corrections. Differences between corresponding theoretical and experimental values are plotted as a function of atomic number and fitted to a smooth curve. The curve is used to obtain predicted wavelength values from Tc to U.

© 1991 Optical Society of America

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