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Exploring new mass regions with the ISOLTRAP spectrometer

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Abstract

First direct mass measurements on rare earth isotopes around 146Gd have been performed with the Penning trap mass spectrometer ISOLTRAP at ISOLDE/CERN. More than 40 isotopes of the elements Pr, Nd, Pm, Sm, Eu, Dy and Ho have been measured with an accuracy of typically 1 × 10-7. In the case of 141Sm isomeric and ground state (ΔE = 175 keV) were resolved. Since isobaric contaminations are present in the ISOLDE beam, these measurements on rare earth isotopes became only possible after the installation of a new cooler trap which acts an isobar separator.

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Authors and Affiliations

  1. GSI-Darmstadt, D-64220, Darmstadt, Germany

    D. Beck, H.-J. Kluge, A. Kohl, M. König & S. Schwarz

  2. CERN, CH-1211, Geneva, 23, Switzerland

    F. Ames, G. Bollen & M. de Saint Simon

  3. CSNSM, IN2P3-CNRS, Bât 108, F-91405, Orsay Campus, France

    G. Audi, D. Lunney, H. Raimbault-Hartmann, J. Szerypo &  the ISOLDE Collaboration

  4. Foster Radiation Laboratory, McGill University, Montreal, PQ, Canada, H3A 2B2

    R.B. Moore

  5. Institut für Physik, Universität Mainz, D-55099, Mainz, Germany

    E. Schark

  6. Instituto de Estructura de la Materia, CSIC, Madrid, Spain

    I. Martel

Authors
  1. D. Beck
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  2. F. Ames
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  3. G. Audi
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  4. G. Bollen
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  5. H.-J. Kluge
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  6. A. Kohl
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  7. M. König
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  8. I. Martel
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  9. D. Lunney
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  10. R.B. Moore
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  11. H. Raimbault-Hartmann
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  12. M. de Saint Simon
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  13. E. Schark
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  14. S. Schwarz
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  15. J. Szerypo
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  16. the ISOLDE Collaboration
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Beck, D., Ames, F., Audi, G. et al. Exploring new mass regions with the ISOLTRAP spectrometer. Hyperfine Interactions 108, 219–225 (1997). https://doi.org/10.1023/A:1012658628740

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  • DOI: https://doi.org/10.1023/A:1012658628740

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