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

Authors
  • Blaum, K.1, 2
  • Beck, D.2
  • Bollen, G.3
  • Delahaye, P.4
  • Guénaut, C.5
  • Herfurth, F.2
  • Kellerbauer, A.4
  • Kluge, H.-J.2
  • Köster, U.4
  • Lunney, D.5
  • Schwarz, S.3
  • Schweikhard, L.6
  • Yazidjian, C.2, 4
  • 1 Johannes Gutenberg-University, Institute of Physics, Mainz, 55099, Germany , Mainz (Germany)
  • 2 GSI Darmstadt, Planckstraße 1, Darmstadt, 64291, Germany , Darmstadt (Germany)
  • 3 Michigan State University, NSCL, East Lansing, MI, 48824-1321, USA , East Lansing (United States)
  • 4 CERN, Department of Physics, Geneva 23, 1211, Switzerland , Geneva 23 (Switzerland)
  • 5 CSNSM-IN2P3-CNRS, Orsay-Campus, 91405, France , Orsay-Campus (France)
  • 6 Ernst-Moritz-Arndt University, Institute of Physics, Greifswald, 17487, Germany , Greifswald (Germany)
Type
Published Article
Journal
Hyperfine Interactions
Publisher
Springer Netherlands
Publication Date
Apr 01, 2005
Volume
162
Issue
1-4
Pages
173–179
Identifiers
DOI: 10.1007/s10751-005-9223-z
Source
Springer Nature
Keywords
License
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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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