The spectra of highly ionized xenon were generated in a tokamak plasma and photographed in the region 60–350 Å with a 2.2-m grazing-incidence spectrograph. The 4s2–4s4p transitions of Zn-like xenon (Xe xxv) and all the 4l–4(l + 1) transitions of Cu-like xenon (Xe xxvi) were measured with estimated uncertainties of ±0.005 Å. These measurements have been combined with previous wavelength measurements of Xe xxvi to determine energy levels. A value for the ionization energy of Xe25+ of 6 912 400 ± 3000 cm−1 (857.0 ± 0.4 eV) was derived.
© 1988 Optical Society of America
Original Manuscript: November 25, 1987
Manuscript Accepted: January 6, 1988
Published: June 1, 1988
Victor Kaufman, William L. Rowan, and Jack Sugar, "Spectra of copperlike and zinclike xenon: Xe xxvand Xe xxvi," J. Opt. Soc. Am. B 5, 1273-1274 (1988)