Abstract

Energy levels in the spectra of Rb iv and Sr v, belonging to the 4s ²4p⁴ and 4s 4p⁵ configurations, are reported for the first time. The transitions, which appear in the 500–1000-Å range, were photographed with a 3-m normal-incidence spectrograph. A sliding spark in vacuum was used as light source. The radial integrals determined from least-squares adjustments to the configurations (and to the corresponding configurations in Kr iii) are compared to Hartree–Fock results. A strong 4s 4p⁵ ↔ 4s ²4p ³4d interaction, which distorts the 4s 4p⁵ configuration, is reported.

© 1974 Optical Society of America

5s²5p⁴–5s5p⁵ transitions in Cs iv, Ba v, and La vi

Joseph Reader
J. Opt. Soc. Am. 73(3) 349-352 (1983)

4s²4p⁴–4s4p⁵ transitions in five-times-ionized yttrium (Yvi)

R. Zalubas, J. Reader, and C. H. Corliss
J. Opt. Soc. Am. 66(1) 35-36 (1976)

Spectra of Rb ii, Sr iii, Y iv, Zr v, Nb vi, and Mo vii in the Vacuum Ultraviolet

Joseph Reader, Gabriel L. Epstein, and Jan Olof Ekberg
J. Opt. Soc. Am. 62(2) 273-284 (1972)

Revised analysis of the 2p⁵3s, 3p, 3d, and 4s configurations of triply ionized aluminum (Al iv)

Victor Kaufman, Marie-Christine Artru, and Wan-U Lydia Brillet
J. Opt. Soc. Am. 64(2) 197-201 (1974)

4s²4p⁴–4s4p⁵ transitions in Zr vii, Nb viii, and Mo ix*

Joseph Reader and Nicolo Acquista
J. Opt. Soc. Am. 66(9) 896-899 (1976)