Energy levels and radiative transition rates for Ba XLVIII

Khatri, Indu; Goyal, Arun; Aggarwal, Sunny; Singh, A.K.; Mohan, Man

doi:10.1016/j.adt.2015.07.002

Cited by 13 publications

(9 citation statements)

References 32 publications

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“…The accuracy of the method depends on the number of configurations required to achieve a desired accuracy. We have also applied this method in our previous work [64][65][66][67][68][69][70][71][72][73][74]. In Table 1 Table 1-3, one can see that the contribution of Breit and QED corrections are equal in the order of 10 -2 for all levels except level number 3 and 27.…”

Section: Energy Levelsmentioning

confidence: 92%

“…To execute accurate and elaborate calculations, we have chosen a fully relativistic MCDF method which was improved by Norrington [62] formerly built by Grant et al [63] and has been successfully implemented in our previous work [64][65][66][67][68][69][70][71][72][73][74]. QED corrections and Breit corrections are taken as a first order perturbation theory.…”

Section: Theoretical Methodsmentioning

confidence: 99%

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Atomic structure calculations and study of EUV and SXR spectral lines in Cu-like ions

et al. 2016

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In the present work, we provide the most extensive and detailed study of highly ionized Cu-like ions and diagnose EUV (Extreme Ultraviolet) and SXR (Soft X-ray) transitions with N-shell electron excitation to M-shell and higher shells. We have determined energy levels, lifetimes for lowest 27 fine-structure levels by adopting multi-configuration Dirac-Fock (MCDF) with the inclusion of quantum electrodynamics (QED) as well as Breit corrections as a first order perturbation theory. We have also reported complete radiative data for strong electric dipole transitions within lowest 27 levels. We have compared our calculated results with theoretically calculated and experimentally measured results available in the literature to measure the credibility and genuineness of our results and achieve a good agreement. Further, due to insufficiency of adequate and complete atomic data for higher levels of highly ionized Cu-like ions in the literature, we have performed other equivalent parallel calculations by implementing fully relativistic distorted wave flexible atomic code (FAC) to ensure the accuracy of our results. Additionally, we have also presented transition wavelengths of Nα transitions of high Z Cu-like ions by using Moseley's law. We believe that the large amount of atomic data presented in this paper may be useful in fusion and astrophysical plasma and in several applications especially in lithography and cell biology.PACS. 32.70.Cs Oscillator strengths, lifetimes -32.10.Fn Fine and hyperfine structure

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Section: Energy Levelsmentioning

confidence: 92%

Section: Theoretical Methodsmentioning

confidence: 99%

Atomic structure calculations and study of EUV and SXR spectral lines in Cu-like ions

et al. 2016

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“…They included a large CI (configuration interaction) among 431 levels of 29 configurations, namely, 2s 2 2p 5 , 2s2p 6 , 2s2p 5 3ℓ, 2p 6 3ℓ, 2s 2 2p 4 3ℓ, 2s 2 2p 4 4ℓ, 2s2p 5 4ℓ, 2s 2 2p 4 5ℓ, and 2s2p 5 5ℓ. Energies for these levels and oscillator strengths (f-values) for transitions among these have already been reported by them in a separate paper [2]. Because inclusion of such a large number of levels in a scattering calculation requires significantly large computational resources, they restricted their work to the lowest 52 levels, which belong to the 2s 2 2p 5 , 2s2p 6 , and 2s 2 2p 4 3ℓ configurations.…”

Section: Collision Strengths and Effective Collision Strengthsmentioning

confidence: 97%

“…Comparison of oscillator strengths (f-values) for some transitions of Ba XLVIII from ground to higher excited levels. GRASP, calculations of Mohan et al[1,2] with GRASP; FAC, present calculations with FAC.…”

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confidence: 99%

Reply to the comment by K.M. Aggarwal on “Collision strength and effective collision strength for Ba XLVIII”

2020

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“…The only results for A-values available for the comparison purpose are those of Khatri et al [16] for transitions from the lowest three to higher excited levels of Ba XLVIII. With them we have no differences for the same reason as for the energy levels.…”

Section: Radiative Ratesmentioning

confidence: 99%

Radiative rates for E1, E2, M1, and M2 transitions in F-like ions with55≤Z≤73

Aggarwal

2018

Atomic Data and Nuclear Data Tables

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Energy levels, radiative rates and lifetimes are reported for 19 F-like ions with 55 ≤ Z ≤ 73, among 113 levels of the 2s 2 2p 5 , 2s2p 6 , 2s 2 2p 4 3ℓ, 2s2p 5 3ℓ, and 2p 6 3ℓ configurations. The general-purpose relativistic atomic structure package (grasp) has been adopted for the calculations, and radiative rates (and other associated parameters, such as oscillator strengths and line strengths) are listed for all E1, E2, M1, and M2 transitions of the ions. Comparisons are made with earlier available theoretical and experimental energies, especially for Ba XLVIII. Nevertheless, calculations have also been performed with the flexible atomic code (fac), and with a much larger configuration interaction with up to 38 089 levels, for further accuracy assessments, particularly for energy levels.

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Energy levels and radiative transition rates for Ba XLVIII

Cited by 13 publications

References 32 publications

Atomic structure calculations and study of EUV and SXR spectral lines in Cu-like ions

Atomic structure calculations and study of EUV and SXR spectral lines in Cu-like ions

Reply to the comment by K.M. Aggarwal on “Collision strength and effective collision strength for Ba XLVIII”

Radiative rates for E1, E2, M1, and M2 transitions in F-like ions with55≤Z≤73

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