Abstract
Level positions of members betweenn=25 andn=45 of the2 S Rydberg series in Ga I were measured with high accuracy. The quantum defect of this series turns out to be constant over the region observed, indicating an unperturbed series. The value of the quantum defect is 2.791(2). The fine structure in the2 D series was measured by using direct excitation. A qualitative explanation is given.
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Davidson, M.D., Buurman, E.P. & Dönszelmann, A. Measurements on the quantum defect of the2 S Rydberg series and fine structure of the2 D Rydberg series in the gallium I spectrum. Z Phys D - Atoms, Molecules and Clusters 15, 293–296 (1990). https://doi.org/10.1007/BF01437171
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DOI: https://doi.org/10.1007/BF01437171