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Natural-linewidth measurements of the 3𝐶 and 3⁢𝐷 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 2⁢𝑝−3⁢𝑑 transitions in neonlike Ni xix ions, [2⁢𝑝6]𝐽=0→[(2⁢𝑝5)1/23⁢𝑑3/2]𝐽=1 and [2⁢𝑝6]𝐽=0→[(2⁢𝑝5)3/23⁢𝑑5/2]𝐽=1, respectively dubbed 3⁢𝐶 and 3⁢𝐷, achieving a resolving...

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Main Authors: Shah, Chintan (Author) , Kühn, Steffen (Author) , Bernitt, Sonja (Author) , Steinbrügge, René (Author) , Togawa, Moto (Author) , Berger, Lukas (Author) , Buck, Jens (Author) , Hoesch, Moritz (Author) , Seltmann, Jörn (Author) , Kozlov, Mikhail G. (Author) , Porsev, Sergey G. (Author) , Gu, Ming Feng (Author) , Porter, F. Scott (Author) , Pfeifer, Thomas (Author) , Leutenegger, Maurice A. (Author) , Cheung, Charles (Author) , Safronova, Marianna S. (Author) , Crespo López-Urrutia, José Ramon (Author)
Format: Article (Journal)
Language:English
Published: 10 June, 2024
In: Physical review
Year: 2024, Volume: 109, Issue: 6, Pages: 1-9
ISSN:2469-9934
DOI:10.1103/PhysRevA.109.063108
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevA.109.063108
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevA.109.063108
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Author Notes: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
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Summary:We used the monochromatic soft-x-ray beamline P04 at the synchrotron-radiation facility PETRA III to resonantly excite the strongest 2⁢𝑝−3⁢𝑑 transitions in neonlike Ni xix ions, [2⁢𝑝6]𝐽=0→[(2⁢𝑝5)1/23⁢𝑑3/2]𝐽=1 and [2⁢𝑝6]𝐽=0→[(2⁢𝑝5)3/23⁢𝑑5/2]𝐽=1, respectively dubbed 3⁢𝐶 and 3⁢𝐷, 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⁡(3⁢𝐶)/𝑓⁡(3⁢𝐷)=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.
Item Description:Gesehen am 20.02.2025
Physical Description:Online Resource
ISSN:2469-9934
DOI:10.1103/PhysRevA.109.063108

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