A critical compilation of experimental data on the 1s2<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e43640" altimg="si1044.svg"><mml:mrow><mml:mi>l</mml:mi><mml:mn>2</mml:mn><mml:msup><mml:mrow><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math> core-excited states of Li-like ions from carbon to uranium

Azarov, V I; Kramida, Alexander; Ralchenko, Yu.

doi:10.1016/j.adt.2022.101548

Cited by 3 publications

(1 citation statement)

References 127 publications

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“…Nevertheless, these triplet states are responsible for emission of important M2 forbidden and spin forbidden transitions and their ratio with strong resonance line from singlet 1s2p 1 P 1 state is used for plasma diagnostics [7]. Thus, to precisely evaluate the line intensity ratio in He-like ions the Li-like and other neighboring ions to be considered and more importantly the core-excited state configurations (1s2s2p) which are extremely difficult to model theoretically [8][9][10][11][12]. Hence, accurate theoretical calculations with latest relativistic and QED corrections are important for all these ions.…”

Section: Introductionmentioning

confidence: 99%

Relativistic atomic structure calculations of Li-like ions used for plasma diagnostic studies

Singh,

Chowdhuri

et al. 2024

Phys. Scr.

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We have carried out atomic structure calculations using systematically enlarged multiconfiguration Dirac- Fock wavefunctions of Li-like ions of the most prominent plasma impurities (Ar, Ti, Fe, Ni, Kr and W) found in presently working tokamaks. Relativistic Breit interaction and quantum electrodynamic (QED) corrections such as vacuum polarization and self-energy corrections are also included in the calculations prior to the evaluation of low lying energy levels, transition probabilities, oscillator strengths and line strengths. Selective radiative data for electric dipole and magnetic quadrupole transitions are also reported. Special emphasis is given in the computations of fundamental quantities such as oscillator strengths as they are widely used in atomic data and analysis structure (ADAS) databases to evaluate quantities such as effective collision strengths. Present com- puted values are compared with existing available results on NIST database and few similar earlier computations and a good agreement has been found. We believe that the detailed atomic data with the relativistic and QED corrections will assist in spectroscopic studies such as accurate line identification and plasma modelling work in tokamak plasma, laser induced breakdown spectroscopy (LIBS), highly charged ions clocks and astrophysical observations.

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Section: Introductionmentioning

confidence: 99%

Relativistic atomic structure calculations of Li-like ions used for plasma diagnostic studies

Singh,

Chowdhuri

et al. 2024

Phys. Scr.

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Hyperfine structure and isotope shift of neutral and singly ionized copper using Fourier transform spectroscopy

Li,

Liu,

et al. 2024

Results in Physics

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Evaluation of uncertainties in atomic data on spectral lines and transition probabilities

Kramida

2024

Eur. Phys. J. D

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The present article discusses some recent advances in methods of critical evaluation of experimental data on wavelengths of spectral lines and theoretical data on transition probabilities and oscillator strengths for atoms and atomic ions. In particular, recently developed new statistical approaches to estimation of uncertainties of weighted means of multiple measurements are described, and a numerical toolbox implementing these new approaches is presented. There are also some new developments in estimation of uncertainties of theoretical transition probabilities. A short review of literature implementing these new procedures is provided, including a description of the methodology. Graphical abstract

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A critical compilation of experimental data on the 1s2l2l′ core-excited states of Li-like ions from carbon to uranium

Cited by 3 publications

References 127 publications

Relativistic atomic structure calculations of Li-like ions used for plasma diagnostic studies

Relativistic atomic structure calculations of Li-like ions used for plasma diagnostic studies

Hyperfine structure and isotope shift of neutral and singly ionized copper using Fourier transform spectroscopy

Evaluation of uncertainties in atomic data on spectral lines and transition probabilities

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