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Accurate Mass Determination of Neutron-Deficient Nuclides Close to Z=82 with ISOLTRAP

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Abstract

The recent implementation of gas-filled radiofrequency traps for efficient ion beam bunching extended the applicability of the Penning trap mass spectrometer ISOLTRAP/CERN to non-surface ionizable species. In a first series of successful runs the masses of 182–197Hg, 196,198Pb, 197Bi, 198Po and 203At have been determined with an accuracy of 1⋅10−7. In order to unambiguously determine the ground state mass the ground and isomeric states of 185,187,191,193,197Hg were separated applying a resolving power of up to 3.7⋅106. First experimental values for the isomeric excitation energy of 187,191Hg were obtained.

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Author notes

  1. S. Schwarz & G. Bollen

    Present address: NSCL/MSU, South Shaw Lane, East Lansing, 48824, Michigan, USA

Authors and Affiliations

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

    S. Schwarz & A. Kellerbauer

  2. Institut für Physik, Johannes Gutenberg Universität Mainz, D-55099, Mainz, Germany

    F. Ames

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

    G. Audi & D. Lunney

  4. Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200 D, B-3001, Leuven, Belgium

    D. Beck

  5. Sektion Physik, Ludwig-Maximilians-Universität München, D-85748, Garching, Germany

    G. Bollen

  6. GSI, Planckstr. 1, D-64291, Darmstadt, Germany

    J. Dilling, F. Herfurth, H.-J. Kluge, A. Kohl, C. Scheidenberger & G. Sikler

  7. Department of Physics, McGill University, Montréal, Québec, H3A 2T8, Canada

    R.B. Moore

  8. Johannes Gutenberg Universität Mainz, Institut für Physik, D-55099, Mainz, Germany

    H. Raimbault-Hartmann

  9. Department of Physics, University of Jyväskylä, PB 35(Y5), FIN-40351, Jyväskylä, Finland

    J. Szerypo

Authors
  1. S. Schwarz
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  2. F. Ames
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  3. G. Audi
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  4. D. Beck
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  5. G. Bollen
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  6. J. Dilling
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  7. F. Herfurth
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  8. H.-J. Kluge
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  9. A. Kellerbauer
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  10. A. Kohl
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  11. D. Lunney
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  12. R.B. Moore
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  13. H. Raimbault-Hartmann
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  14. C. Scheidenberger
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  15. G. Sikler
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  16. J. Szerypo
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Schwarz, S., Ames, F., Audi, G. et al. Accurate Mass Determination of Neutron-Deficient Nuclides Close to Z=82 with ISOLTRAP. Hyperfine Interactions 132, 335–338 (2001). https://doi.org/10.1023/A:1011996613609

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  • DOI: https://doi.org/10.1023/A:1011996613609

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