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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Blaum, K. et al. (2006). Laser Ionization and Penning Trap Mass Spectrometry — A Fruitful Combination for Isomer Separation and High-precision Mass Measurements. In: Błaszczak, Z., Markov, B., Marinova, K. (eds) Laser 2004. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-30926-8_21
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DOI: https://doi.org/10.1007/3-540-30926-8_21
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-30925-3
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