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Direct mass measurements of unstable rare earth isotopes with the ISOLTRAP mass spectrometer

Abstract : Direct mass measurements of neutron deficient rare earth isotopes in the vicinity of 146Gd were performed for the first time with the Penning trap mass spectrometer ISOLTRAP at ISOLDE/CERN. Since ISOL-facilities deliver these isotopes with a large amount of isobaric contamination, these measurements became possible only after the installation of a new cooler trap which acts as an isobar separator. To date more than 40 isotopes of the elements Pr, Nd, Pm, Sm, Eu, Dy, and Ho have been measured with a typical accuracy of δm ≈ 14 keV. Some of these isotopes provide an important anchor for many other isotopes linked by known Q-values.
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Contributor : Jocelyne Lorgeril <>
Submitted on : Monday, November 16, 1998 - 10:06:58 AM
Last modification on : Wednesday, September 16, 2020 - 4:06:42 PM

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D. Beck, F. Ames, G. Audi, G. Bollen, H.-J. Kluge, et al.. Direct mass measurements of unstable rare earth isotopes with the ISOLTRAP mass spectrometer. International Conference on Nuclear Physics at Storage Rings 3 Nuclear Physics at Storage Rings 3 Stori 96, Sep 1996, Bernkastel-Kues, Germany. pp.343c-352c, ⟨10.1016/S0375-9474(97)00556-3⟩. ⟨in2p3-00014296⟩

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