Transitions of the Type 2s–2p in Highly–Ionized Cu Through Rb

Abstract

We report here the observation of spectral lines in the F I, 0 I, N I, and C I isoelectronic sequences of Cu, Zn, Ga, Ge, As, Se, Br, and Rb. The plasma was produced by the spherical irradiation of solid targets using six frequency-tripled beams from the OMEGA laser system at the University of Rochester. The wavelengths were recorded using a 3 meter grazing incidence spectrograph, and the wavelengths were determined relative to several previously observed lines in the F I, 0 I, and Na I sequences. There is good overall consistency with the wavelengths recommended by Edlen (1983) for the F I and O I sequences and with the wavelengths measured by Kononov (1979) for the Na I sequence. Most of the observed transitions in the N I and C I sequences represent new identifications, and a complete set of energies for the 2s2p4 configuration of the N-like ions Cu XXIII, Zn XXIV, Ga XXV, and Ge XXVI is presented.