Production of negative osmium ions by laser desorption and ionization
The interest to produce negative osmium ions is manifold in the realm of high-accuracy ion trap experiments: high-resolution nearly Doppler-free laser spectroscopy, antihydrogen formation in its ground state, and contributions to neutrino mass spectrometry. Production of these ions is generally acco...
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| Hauptverfasser: | , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
6 January 2010
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| In: |
Review of scientific instruments
Year: 2010, Jahrgang: 81, Heft: 1, Pages: 1-4 |
| ISSN: | 1089-7623 |
| DOI: | 10.1063/1.3276685 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1063/1.3276685
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| Verfasserangaben: | D. Rodríguez, V. Sonnenschein, K. Blaum, M. Block, H.-J. Kluge, A.M. Lallena, S. Raeder, and K. Wendt |
| Zusammenfassung: | The interest to produce negative osmium ions is manifold in the realm of high-accuracy ion trap experiments: high-resolution nearly Doppler-free laser spectroscopy, antihydrogen formation in its ground state, and contributions to neutrino mass spectrometry. Production of these ions is generally accomplished by sputtering an Os sample with Cs+ ions at tens of keV. Though this is a well-established method commonly used at accelerators, these kind of sources are quite demanding and tricky to operate. Therefore, the development of a more straightforward and cost effective production scheme will be of benefit for ion trap and other experiments. Such a scheme makes use of desorption and ionization with pulsed lasers and identification of the ions by time-of-flight mass spectrometry. First investigations of negative osmium ion production using a pulsed laser for desorption and ionization and a commercial matrix-assisted laser desorption/ionization time-of-flight system for identification has demonstrated the suitability of this technique. More than 103 negative osmium ions per shot were registered after bombarding pure osmium powder with a 5 ns pulse width Nd:yttrium aluminum garnet laser. The limitation in the ion number was imposed by the detection limit of the microchannel plate detector. |
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| Beschreibung: | Gesehen am 25.05.2023 |
| Beschreibung: | Online Resource |
| ISSN: | 1089-7623 |
| DOI: | 10.1063/1.3276685 |