Theoretical determination of energies, wavelengths, and transition rates for the Y<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si168.gif" overflow="scroll"><mml:msup><mml:mrow/><mml:mrow><mml:mn>30</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:math>–Y<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si7.gif" overflow="scroll"><mml:msup><mml:mrow/><mml:mrow><mml:mn>36</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:math> spectra of fusion interest

Chen, Zhan-Bin; Wang, Kai; Guo, Xueling

doi:10.1016/j.jqsrt.2018.09.009

Cited by 18 publications

(2 citation statements)

References 59 publications

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“…Using at least one of the three methods (RMBPT, MCDHF, and FAC-RCI), we carried out many theoretical studies of excitation energies and E1, M1, E2, M2 transition rates for Kand L-shell ions with Z ≤ 42, such as the ions in the sequences of H-like, [37,38] He-like, [39,40] Be-like, [41][42][43][44][45] B-like, [46][47][48] C-like, [49,50] N-like, [51][52][53][54][55] Olike, [56][57][58][59][60] F-like, [61][62][63] and Ne-like. [64] It is important to provide atomic data for more than just the levels of the lowest configurations in plasma modeling and diagnostics.…”

Section: Resultsmentioning

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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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: Resultsmentioning

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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“…Due to the importance of lithium-like ions, there have been many studies on the ions. [3,[6][7][8][9][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] In particular, Nahar et al [28] (hereafter referred to as Nahar1999) used the quasi-relativistic Breit-Pauli R-matrix method (BPRM) to calculate E1 transition radiative rates between energy levels up to n = 10 for lithium-like iron. In their calculations, they just added one-body relativistic correction terms to the non-relativistic Hamiltonian, [31] which included the one-body mass correction, the one-body Darwin term, and the spin-orbit term, they did not even include the two-body interactions in the Breit-Pauli approximation (such as the spin-other orbit, spin-spin, orbit-orbit, two-body Darwin, and spin-contact terms).…”

Section: Introductionmentioning

confidence: 99%

Fully relativistic many-body perturbation energies, transition properties, and lifetimes of lithium-like iron Fe XXIV

Min

Liu

et al. 2023

Chinese Phys. B

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Employing the advanced relativistic configuration interaction (RCI) combined with the many-body perturbation theory (RMBPT) method, we report energies and lifetime values for the lowest 35 energy levels from the (1s2)nl configurations (where the principal quantum number n = 2–6 and the angular quantum number l = 0,…,n–1) of lithium-like iron Fe XXIV, as well as complete data on the transition wavelengths, radiative rates, absorption oscillator strengths, and line strengths between the levels. Both the allowed (E1) and forbidden (magnetic dipole M1, magnetic quadrupole M2, and electric quadrupole E2) ones are reported. Through detailed comparisons with previous results, we assess the overall accuracies of present RMBPT results to be likely the most precise ones to date. Configuration interaction effects are found to be very important for the energies and radiative properties for the ion. The present RMBPT results are valuable for spectral line identification, plasma modeling, and diagnosing.

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Energy levels, lifetimes, and transition probabilities for Sr XXXII

Attia

2023

J.Umm Al-Qura Univ. Appll. Sci.

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The fully relativistic multiconfiguration Dirac–Hartree–Fock (MCDHF) approach was used to calculate the excitation energies and lifetimes for the lowest 272 levels that belonging to the $$2{s}^{2}2{p}^{3}$$ 2 s 2 2 p 3 , $$2s2{p}^{4}$$ 2 s 2 p 4 , $$2{p}^{5}$$ 2 p 5 , $$2{s}^{2}2{p}^{2}3l$$ 2 s 2 2 p 2 3 l , $$2s2{p}^{3}3l$$ 2 s 2 p 3 3 l , and $$2{p}^{4}3l$$ 2 p 4 3 l ($$l=s, p, d$$ l = s , p , d ) configurations for N-like strontium, Sr XXXII, as well as the wavelengths, weighted oscillator strengths, transition probabilities, and line strengths for the electric dipole (E1), electric quadrupole (E2), magnetic dipole (M1), and magnetic quadrupole (M2) transitions among these levels. The Breit-interaction (BI), and quantum electrodynamics (QED) corrections have been incorporated into the computations. In order to assess the uncertainties of the current calculations, comparisons with available data, and the results from the largest MCDHF layers have all performed.

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Theoretical determination of energies, wavelengths, and transition rates for the Y30+–Y36+ spectra of fusion interest

Cited by 18 publications

References 59 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

Fully relativistic many-body perturbation energies, transition properties, and lifetimes of lithium-like iron Fe XXIV

Energy levels, lifetimes, and transition probabilities for Sr XXXII

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