Laser Ionization and Penning Trap Mass Spectrometry – A Fruitful Combination for Isomer Separation and High-precision Mass Measurements
| Autor: | Lutz Schweikhard, C. Yazidjian, Dietrich Beck, F. Herfurth, Ulli Köster, Stefan Schwarz, P. Delahaye, Georg Bollen, H.-J. Kluge, Alban Kellerbauer, C. Guénaut, Klaus Blaum, David Lunney |
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| Rok vydání: | 2006 |
| Předmět: |
Nuclear and High Energy Physics
Chemical ionization Chemistry Thermal ionization mass spectrometry Condensed Matter Physics Mass spectrometry ISOLTRAP Atomic and Molecular Physics and Optics Ion source Atmospheric-pressure laser ionization Physics::Atomic and Molecular Clusters Physical and Theoretical Chemistry Time-of-flight mass spectrometry Atomic physics Nuclear Experiment Electron ionization |
| Zdroj: | Hyperfine Interactions. 162:173-179 |
| ISSN: | 1572-9540 0304-3843 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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