Abstract

Radiative lifetime measurements are combined with experimental branching fraction measurements to give 28 absolute oscillator strengths for ultraviolet lines of Co II. The radiative lifetimes are determined by laser-induced fluorescence measurements, and the branching fractions are measured using a high-resolution grating spectrometer and an optically thin hollow cathode discharge. The oscillator strengths establish the absolute scale for relative absorption oscillator strength measurements made with the high-sensitivity absorption spectroscopy experiment at the University of Wisconsin.

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