Energy levels, lifetimes, and transition rates for the selenium isoelectronic sequence Pd XIII–Te XIX, Xe XXI–Nd XXVII, W XLI

Wang, Kai; Yang, Xu; Chen, Zhan-Bin; Si, R.; Chen, C.Y.; Yan, Jun; Zhao, Xiao Hui; Dang, Wei

doi:10.1016/j.adt.2016.10.002

Cited by 14 publications

(7 citation statements)

References 25 publications

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“…[96] 3p 6 3d 10 , 3s 2 3p 5 3d 9 , 3s3p 5 3d 10 Co-like W 3s 2 3p 6 3d 9 , 3s3p 6 3d 10 , 3s 2 3p 6 3d 8 4s, RMBPT&MCDHF 5 [34,97] 3s 2 3p 6 3d 8 4d, 3s 2 3p 5 3d 9 4p, 3s 2 3p 5 3d 9 4f, 3s 2 3p 4 3d 10 4p, 3s3p 6 3d 9 4s, 3s 2 3p 5 3d 10 , 3s 2 3p 6 3d 8 4p, 3s 2 3p 6 3d 8 4f, 3s 2 3p 5 3d 9 4s, 3s 2 3p 5 3d 9 4d Ga-like W 4s 2 4p, 4s 2 4d, 4s4p In our works for M-shell and N-shell tungsten ions, [29,30,34,[96][97][98][99][100][101] atomic properties (of n = 3 states for Mshell and n = 4 states for N-shell) including excitation energies, wavelengths, and transition properties from Al-like W 61+ through Co-like W 47+ , Ga-like W 43+ through Se-like W 40+ , and W 38+ ions are calculated and cross-checked by using the RMBPT and MCDHF approaches. The two datasets are in excellent agreement with each other on the order of 0.01% for M-shell and 0.1% for N-shell tungsten ions.…”

Section: M-shell and N-shell Tungsten Ionsmentioning

confidence: 72%

“…For the highly charged tungsten ions, our research group has already devoted to the study of the excitation energies, E1, M1, E2, M2, and E3 transition properties for M-shell (open 3p-and 3d-subshell) and N-shell (open 4p-subshell) tungsten ions [29,30,34,[96][97][98][99][100][101] by using the RMBPT and MCDHF methods. The targeted configurations and the number of studied states for each tungsten ion are summarized in Table 5.…”

Section: M-shell and N-shell Tungsten Ionsmentioning

confidence: 99%

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Benchmarking calculations of excitation energies and transition properties with spectroscopic accuracy of highly charged ions used for the fusion plasma and astrophysical plasma

Zhang

Wang

et al. 2023

Chinese Phys. B

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Atomic radiative data such as excitation energies, transition wavelengths, radiative rates, and level lifetimes with high precision are the essential parameters for the abundance analysis, simulation, and diagnostics in fusion and astrophysical plasmas. In this work, we mainly focus on reviewing our two projects performed in the past decade. One is about the ions with Z ≲ 30 that are generally of astrophysical interest, and the other one is about the highly charged krypton (Z = 36) and tungsten (Z = 74) ions that are relevant in research of magnetic confinement fusion. Two different and independent methods, namely, multiconfiguration Dirac–Hartree–Fock (MCDHF) and the relativistic many-body perturbation theory (RMBPT) are usually used in our studies. As a complement/extension to our previous works for highly charged tungsten ions with open M-shell and open N-shell, we also mainly focus on presenting and discussing our complete RMBPT and MCDHF calculations for the excitation energies, wavelengths, electric dipole (E1), magnetic dipole (M1), electric quadrupole (E2), and magnetic quadrupole (M2) transition properties, and level lifetimes for the lowest 148 levels belonging to the 3l 3 configurations in Al-like W61+. We also summarize the uncertainties of our systematical theoretical calculations, by cross-checking/validating our datasets from our RMBPT and MCDHF calculations, and by detailed comparisons with available accurate observations and other theoretical calculations. The data are openly available in Science Data Bank at https://doi.org/10.57760/sciencedb.10569.

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Section: M-shell and N-shell Tungsten Ionsmentioning

confidence: 72%

Section: M-shell and N-shell Tungsten Ionsmentioning

confidence: 99%

Benchmarking calculations of excitation energies and transition properties with spectroscopic accuracy of highly charged ions used for the fusion plasma and astrophysical plasma

Zhang

Wang

et al. 2023

Chinese Phys. B

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“…These wavelengths are listed in Table 1 for reference. While majority of the theoretical studies have also focused on these charge states owing to their simple structure having one-or two-valence electrons in the outer shell [30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46], some atomic systems with multi-valence electrons, e.g., belonging to Galike and Se-like isoelectronic sequences, have been previously studied [47,48]. These theoretical predictions are given in the last column of Table 1.…”

Section: Identification Resultsmentioning

confidence: 99%

“…'RMBPT' and 'FAC' in the last column indicate the energies calculated by relativistic many-body perturbation theory (RMBPT) [49] and FAC [26] one or two valence electrons in the outer shell [30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46], some atomic systems with multi-valence electrons, e.g. belonging to Ga-like and Se-like isoelectronic sequences, have been previously studied [47,48]. These theoretical predictions are given in the last column of table 1.…”

Section: Identification Resultsmentioning

confidence: 99%

Identifications of extreme ultraviolet spectra of Br-like to Ni-like neodymium ions using an electron beam ion trap

Suzuki¹,

Dipti²,

Yang³

et al. 2020

J. Phys. B: At. Mol. Opt. Phys.

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Accurate extreme ultraviolet spectra of open N-shell neodymium (Nd) ions were recorded at the electron beam ion trap facility of the National Institute of Standards and Technology. The measurements were performed for nominal electron beam energies in the range of 0.90 keV to 2.31 keV. The measured spectra were then compared with the spectra simulated by a collisional-radiative model utilizing atomic data produced with a fully relativistic atomic structure code. Consequently, 59 lines from Br-like to Ni-like Nd ions were unambiguously identified, most of which were newly assigned in this study. The wavelengths of 9 known lines from Ni-, Cu- and Zn-like Nd ions were in excellent agreement with previous measurements.

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“…47.15 47.2873 [11] 46.95 [28] 1.50 (12) 1.49 (12) [28] 1 (46.92,47.17) [31] 50.894 [29] 2.490(9) [31] (…”

Section: The Synthetic Spectrum Of the W 40+ -W 42+ Ionsunclassified

Collisional-radiative modeling for the EUV spectrum of W⁴⁰⁺-W⁴²⁺ions

Lei,

Ding,

et al. 2024

New J. Phys.

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The wavelengths and transition rates of W40+ - W42+ ions within the range of 40-140 Å, have been calculated using the Flexible Atomic Code of the Dirac-Fock-Slater method with a central potential. We investigated the charge state distribution of W38+- W45+ ions at different temperatures by constructing an appropriate rate equation and demonstrate the importance of the dielectronic recombination process. Additionally, we simulated the emission spectra of W40+ - W42+ ions in a Tokamak plasma environment using collisional-radiative modeling. Our findings demonstrate strong agreement with experimental results and other related theoretical investigations. Finally, we propose certain pairs of transition lines as diagnostic tools for plasma temperature and density, leveraging the correlation between line intensity ratio and electron temperature and density.

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Energy levels, lifetimes, and transition rates for the selenium isoelectronic sequence Pd XIII–Te XIX, Xe XXI–Nd XXVII, W XLI

Cited by 14 publications

References 25 publications

Benchmarking calculations of excitation energies and transition properties with spectroscopic accuracy of highly charged ions used for the fusion plasma and astrophysical plasma

Benchmarking calculations of excitation energies and transition properties with spectroscopic accuracy of highly charged ions used for the fusion plasma and astrophysical plasma

Identifications of extreme ultraviolet spectra of Br-like to Ni-like neodymium ions using an electron beam ion trap

Collisional-radiative modeling for the EUV spectrum of W⁴⁰⁺-W⁴²⁺ions

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Energy levels, lifetimes, and transition rates for the selenium isoelectronic sequence Pd XIII–Te XIX, Xe XXI–Nd XXVII, W XLI

Cited by 14 publications

References 25 publications

Benchmarking calculations of excitation energies and transition properties with spectroscopic accuracy of highly charged ions used for the fusion plasma and astrophysical plasma

Benchmarking calculations of excitation energies and transition properties with spectroscopic accuracy of highly charged ions used for the fusion plasma and astrophysical plasma

Identifications of extreme ultraviolet spectra of Br-like to Ni-like neodymium ions using an electron beam ion trap

Collisional-radiative modeling for the EUV spectrum of W40+-W42+ions

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Collisional-radiative modeling for the EUV spectrum of W⁴⁰⁺-W⁴²⁺ions