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Laser Ionization and Penning Trap Mass Spectrometry – A Fruitful Combination for Isomer Separation and High-precision Mass Measurements

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Abstract

We have demonstrated for the first time that element-selective laser ionization in combination with ultra-high resolution mass spectrometry can be used to prepare isomerically pure ion ensembles. Together with β–γ coincidence studies this method allowed a determination of the low-energy structure and the unambiguous identification of triple β-decaying isomerism in 70Cu. By selective resonant ionization and measurement of the masses of these three states using ISOLTRAP at ISOLDE/CERN with a relative uncertainty of δm/m ≈ 5 ⋅ 10−8 a clear state-to-mass assignment was possible which resolved the assignment puzzle in 70Cu.

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Authors and Affiliations

  1. Institute of Physics, Johannes Gutenberg-University, 55099, Mainz, Germany

    K. Blaum

  2. GSI Darmstadt, Planckstraße 1, 64291, Darmstadt, Germany

    K. Blaum, D. Beck, F. Herfurth, H.-J. Kluge & C. Yazidjian

  3. NSCL, Michigan State University, East Lansing, MI, 48824-1321, USA

    G. Bollen & S. Schwarz

  4. Department of Physics, CERN, 1211, Geneva 23, Switzerland

    P. Delahaye, A. Kellerbauer, U. Köster & C. Yazidjian

  5. CSNSM-IN2P3-CNRS, 91405, Orsay-Campus, France

    C. Guénaut & D. Lunney

  6. Institute of Physics, Ernst-Moritz-Arndt University, 17487, Greifswald, Germany

    L. Schweikhard

Authors
  1. K. Blaum
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  2. D. Beck
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  3. G. Bollen
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  4. P. Delahaye
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  5. C. Guénaut
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  6. F. Herfurth
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  7. A. Kellerbauer
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  8. H.-J. Kluge
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  9. U. Köster
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  10. D. Lunney
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  11. S. Schwarz
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  12. L. Schweikhard
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  13. C. Yazidjian
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Corresponding author

Correspondence to K. Blaum.

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Blaum, K., Beck, D., Bollen, G. et al. Laser Ionization and Penning Trap Mass Spectrometry – A Fruitful Combination for Isomer Separation and High-precision Mass Measurements. Hyperfine Interact 162, 173–179 (2005). https://doi.org/10.1007/s10751-005-9223-z

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  • DOI: https://doi.org/10.1007/s10751-005-9223-z

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