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Laser-induced fluorescence spectroscopy in a collimated atomic beam has been applied to determine isotope shifts and the hyperfine structure of an isotopic chain of the radioactive element polonium (²⁰⁰Po, ²⁰²Po, ²⁰⁴⁻⁻²¹⁰Po). The relative isotope shifts show a striking similarity with results for other elements in the vicinity of Pb, even reproducing details of the odd-even staggering.
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Kowalewska et al. (1991) studied this question.
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