Natural-linewidth measurements of the 3𝐶 and 3𝐷 soft-x-ray transitions in Ni xix
We used the monochromatic soft-x-ray beamline P04 at the synchrotron-radiation facility PETRA III to resonantly excite the strongest 2𝑝−3𝑑 transitions in neonlike Ni xix ions, [2𝑝6]𝐽=0→[(2𝑝5)1/23𝑑3/2]𝐽=1 and [2𝑝6]𝐽=0→[(2𝑝5)3/23𝑑5/2]𝐽=1, respectively dubbed 3𝐶 and 3𝐷, achieving a resolving...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
10 June, 2024
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| In: |
Physical review
Year: 2024, Jahrgang: 109, Heft: 6, Pages: 1-9 |
| ISSN: | 2469-9934 |
| DOI: | 10.1103/PhysRevA.109.063108 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevA.109.063108 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevA.109.063108 |
| Verfasserangaben: | Chintan Shah, Steffen Kühn, Sonja Bernitt, René Steinbrügge, Moto Togawa, Lukas Berger, Jens Buck, Moritz Hoesch, Jörn Seltmann, Mikhail G. Kozlov, Sergey G. Porsev, Ming Feng Gu, F. Scott Porter, Thomas Pfeifer, Maurice A. Leutenegger, Charles Cheung, Marianna S. Safronova, and José R. Crespo López-Urrutia |
| Zusammenfassung: | We used the monochromatic soft-x-ray beamline P04 at the synchrotron-radiation facility PETRA III to resonantly excite the strongest 2𝑝−3𝑑 transitions in neonlike Ni xix ions, [2𝑝6]𝐽=0→[(2𝑝5)1/23𝑑3/2]𝐽=1 and [2𝑝6]𝐽=0→[(2𝑝5)3/23𝑑5/2]𝐽=1, respectively dubbed 3𝐶 and 3𝐷, achieving a resolving power of 15 000 and signal-to-background ratio of 30. We obtain their natural linewidths, with an accuracy of better than 10%, as well as the oscillator-strength ratio 𝑓(3𝐶)/𝑓(3𝐷)=2.51(11) from analysis of the resonant fluorescence spectra. These results agree with those of previous experiments, earlier predictions, and our own advanced calculations. |
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| Beschreibung: | Gesehen am 20.02.2025 |
| Beschreibung: | Online Resource |
| ISSN: | 2469-9934 |
| DOI: | 10.1103/PhysRevA.109.063108 |