Population trapping: The mechanism for the lost resonance lines in Pm-like ions

• KATO, Daiji

• SAKAUE, Hiroyuki A.

• MURAKAMI, Izumi

• Nakamura, Nobuyuki

抄録

We report a population kinetics study on line emissions of the Pm-like Bi22+ performed by using a collisional-radiative (CR) model. Population rates of excited levels are analyzed to explain the population trapping in the 4f135s2 state which causes the loss of the 5s − 5p resonance lines in emission spectra. Based on the present analysis, we elucidate why the population trapping is not facilitated for a meta-stable excited level of the Sm-like Bi21+. The emission line spectra are calculated for the Pm-like isoelectronic sequence from Au18+ through W13+ and compared with experimental measurements by electron-beam-ion-traps (EBITs). Structures of the spectra are similar for all of the cases except for calculated W13+ spectra. The calculated spectra are hardly reconciled with the measured W13+ spectrum using the compact electron-beam-ion-trap (CoBIT) [Phys. Rev. A 92 (2015) 022510].

収録刊行物

• Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

  Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 408 16-20, 2017-05-29

  ELSEVIER

キーワード

• Alkaline metal-like resonance line
• Pm-like ion
• Meta-stable state
• Collisional-radiative modelEBIT
• EUV spectra

詳細情報

• CRID: 1050009062401439872
• NII論文ID: 120007180046
• NII書誌ID: AA10529980
• ISSN: 0168583X
• DOI: 10.1016/j.nimb.2017.05.029
• HANDLE: 10655/00012811
• Web Site: https://nifs-repository.repo.nii.ac.jp/records/10841
• Web Site: https://api.elsevier.com/content/article/PII:S0168583X17306109?httpAccept=text/xml
• Web Site: https://api.elsevier.com/content/article/PII:S0168583X17306109?httpAccept=text/plain
• 本文言語コード: en
• 資料種別: journal article
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