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Accurate masses of unstable rare-earth isotopes by ISOLTRAP

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Abstract

Direct mass measurements of neutron-deficient rare-earth isotopes in the vicinity of 146Gd were performed with the Penning trap mass spectrometer ISOLTRAP at ISOLDE/CERN. This paper reports on the measurement of more than 40 isotopes of the elements praseodymium, neodymium, promethium, samarium, europium, dysprosium and holmium, that have been measured with a typical accuracy of δm ≈ 14 keV. An atomic mass evaluation has been performed taking into account other experimental mass values via a least-squares adjustment. The results of the adjustment are discussed.

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Correspondence to D. Beck.

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Communicated by D. Schwalm

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Beck, D., Ames, F., Audi, G. et al. Accurate masses of unstable rare-earth isotopes by ISOLTRAP. Eur. Phys. J. A 8, 307–329 (2000). https://doi.org/10.1007/s100500070085

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  • DOI: https://doi.org/10.1007/s100500070085

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