Relativistic configuration interaction calculations of photoionization and photoabsorption in Ne and Ne-like Na+ ion
Relativistic configuration interaction (RCI) calculations of photoionization and photoabsorption of neon and Ne-like Na+ ion are investigated in this paper. The calculated ionization threshold limits, resonance energies, wavelengths, transition rates, and oscillator strengths for the 1s2 2s2 2p5 (2P...
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| Language: | English |
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Elsevier
2025-12-01
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| Series: | Chemical Physics Impact |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667022425001124 |
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| author | G.A. Alna'washi S.M. Hamasha O. Abu-Haija |
| author_facet | G.A. Alna'washi S.M. Hamasha O. Abu-Haija |
| author_sort | G.A. Alna'washi |
| collection | DOAJ |
| description | Relativistic configuration interaction (RCI) calculations of photoionization and photoabsorption of neon and Ne-like Na+ ion are investigated in this paper. The calculated ionization threshold limits, resonance energies, wavelengths, transition rates, and oscillator strengths for the 1s2 2s2 2p5 (2P3/2) ns, 1s2 2s2 2p5 (2P1/2) nd, 1s2 2s 2p6 (2S1/2) np (1P1) and 1s 2s2 2p6 (2S1/2) np (1P1) resonance series of Ne and Ne-like Na+ ion, originating from the 1s2 2s2 2p6 (1S0) ground state, are presented. All the calculations were performed using the RCI method implemented in the Flexible Atomic Code (FAC). Comparisons with previous theoretical and experimental results show a very good agreement. This work provides the first comprehensive dataset for K-shell photoexcitations in Na+, addressing a significant gap in atomic data. These data are essential for modeling X-ray photoabsorption processes in astrophysical plasmas and improving the accuracy of spectral diagnostics in high-resolution observations. |
| format | Article |
| id | doaj-art-e2d84fef29f44a2e80faa85812f9b542 |
| institution | Kabale University |
| issn | 2667-0224 |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Chemical Physics Impact |
| spelling | doaj-art-e2d84fef29f44a2e80faa85812f9b5422025-08-20T03:59:35ZengElsevierChemical Physics Impact2667-02242025-12-011110092610.1016/j.chphi.2025.100926Relativistic configuration interaction calculations of photoionization and photoabsorption in Ne and Ne-like Na+ ionG.A. Alna'washi0S.M. Hamasha1O. Abu-Haija2Department of Physics, Faculty of Science, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan; Corresponding author.Department of Physics, Faculty of Science, The Hashemite University, P.O. Box 330127, Zarqa 13133, JordanApplied Physics Department, Tafila Technical University, P. O. Box 179, Tafila, 66110, JordanRelativistic configuration interaction (RCI) calculations of photoionization and photoabsorption of neon and Ne-like Na+ ion are investigated in this paper. The calculated ionization threshold limits, resonance energies, wavelengths, transition rates, and oscillator strengths for the 1s2 2s2 2p5 (2P3/2) ns, 1s2 2s2 2p5 (2P1/2) nd, 1s2 2s 2p6 (2S1/2) np (1P1) and 1s 2s2 2p6 (2S1/2) np (1P1) resonance series of Ne and Ne-like Na+ ion, originating from the 1s2 2s2 2p6 (1S0) ground state, are presented. All the calculations were performed using the RCI method implemented in the Flexible Atomic Code (FAC). Comparisons with previous theoretical and experimental results show a very good agreement. This work provides the first comprehensive dataset for K-shell photoexcitations in Na+, addressing a significant gap in atomic data. These data are essential for modeling X-ray photoabsorption processes in astrophysical plasmas and improving the accuracy of spectral diagnostics in high-resolution observations.http://www.sciencedirect.com/science/article/pii/S2667022425001124Ne-like ionsRelativistic configuration interactionResonance energyWavelengthsPhotoionizationPhotoabsorption |
| spellingShingle | G.A. Alna'washi S.M. Hamasha O. Abu-Haija Relativistic configuration interaction calculations of photoionization and photoabsorption in Ne and Ne-like Na+ ion Chemical Physics Impact Ne-like ions Relativistic configuration interaction Resonance energy Wavelengths Photoionization Photoabsorption |
| title | Relativistic configuration interaction calculations of photoionization and photoabsorption in Ne and Ne-like Na+ ion |
| title_full | Relativistic configuration interaction calculations of photoionization and photoabsorption in Ne and Ne-like Na+ ion |
| title_fullStr | Relativistic configuration interaction calculations of photoionization and photoabsorption in Ne and Ne-like Na+ ion |
| title_full_unstemmed | Relativistic configuration interaction calculations of photoionization and photoabsorption in Ne and Ne-like Na+ ion |
| title_short | Relativistic configuration interaction calculations of photoionization and photoabsorption in Ne and Ne-like Na+ ion |
| title_sort | relativistic configuration interaction calculations of photoionization and photoabsorption in ne and ne like na ion |
| topic | Ne-like ions Relativistic configuration interaction Resonance energy Wavelengths Photoionization Photoabsorption |
| url | http://www.sciencedirect.com/science/article/pii/S2667022425001124 |
| work_keys_str_mv | AT gaalnawashi relativisticconfigurationinteractioncalculationsofphotoionizationandphotoabsorptioninneandnelikenaion AT smhamasha relativisticconfigurationinteractioncalculationsofphotoionizationandphotoabsorptioninneandnelikenaion AT oabuhaija relativisticconfigurationinteractioncalculationsofphotoionizationandphotoabsorptioninneandnelikenaion |