Abstract
Eight transitions in the Eu I-spectrum connecting the ground state with configuration 4f 7 6s 2 with states of the configuration 4f 7 6s6p were studied with high resolution laseratomic-beam spectroscopy. CW dye lasers operating in the wavelength regions 435–470 nm and 560–630 nm were used for this study. New data for the hyperfine structure in153Eu were obtained as well as new and more accurate values for the isotope shifts between151Eu and153Eu. The existing data for the hyperfine structure in151Eu were reproduced with an exception for the levelz 6 P 7/2.
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We greatfully acknowledge Dr. G. Smith, Oxford, for sending details of his wave functions.
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Zaal, G.J., Hogervorst, W., Eliel, E.R. et al. A high resolution study of the transitions 4f 76s 2→4f 76s6p in the Eu I-spectrum. Z Physik A 290, 339–344 (1979). https://doi.org/10.1007/BF01408393
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DOI: https://doi.org/10.1007/BF01408393