Abstract
In the present paper, the spectroscopic properties and plasma characteristics of Al-like ions are investigated in an extensive and detailed manner by adopting the GRASP2K package based on fully relativistic Multi-Configuration Dirac–Hartree–Fock (MCDHF) wave-functions in the active space approximation. We have presented energy levels for Al-like ions for Valence-Valence (VV) and Core-Valence (CV) correlations under the scheme of active space. We have also provided radiative data for E1 transitions for Al-like ions and studied the variation of the transition wavelength and transition probability for electric dipole (E1) Extreme Ultraviolet (EUV) transitions with nuclear charge. Our calculated energy levels and transition wavelengths match well with available theoretical and experimental results. The discrepancies of the GRASP2K code results with CIV3 and RMPBT (Relativistic Many Body Perturbation Theory) results are also discussed. The variations of the line intensity ratio, electron density, plasma frequency and plasma skin depth with plasma temperature and nuclear charge are discussed graphically in detail for optically thin plasma in Local Thermodynamic Equilibrium (LTE). We believe that our obtained results may be beneficial for comparisons and in fusion and astrophysical plasma research.
Highlights
In recent years, medium Z-elements are the most probable candidates for plasma diagnostics and modeling, as spectral lines of higher wavelengths and the atomic spectra of their ions may be employed to compute various parameters, like plasma temperature, electron density, etc. [1,2,3,4]
We have reported the energy levels and radiative data for E1 transitions from the ground state belonging to the configurations
The energy levels and transition wavelengths presented in this paper were compared to the data available in the literature, and good agreement was found
Summary
Medium Z-elements are the most probable candidates for plasma diagnostics and modeling, as spectral lines of higher wavelengths and the atomic spectra of their ions may be employed to compute various parameters, like plasma temperature, electron density, etc. [1,2,3,4]. Medium Z-elements are the most probable candidates for plasma diagnostics and modeling, as spectral lines of higher wavelengths and the atomic spectra of their ions may be employed to compute various parameters, like plasma temperature, electron density, etc. In the past few years, the identification and detailed study and analysis of spectral lines on the experimental side through atomic data have boosted the research progress in plasma physics for highly ionized elements. Atoms 2016, 4, 22 high Z ions have been presented in the literature [5,6,7,8,9,10], in this paper, we have furnished the plasma characteristics with Multi-Configuration Dirac–Hartree–Fock (MCDHF) calculations for highly ionized Al-like ions. Atomic binding energies of the lithium to dubnium isoelectronic sequence (including Al-like ions) have been studied by Rodrigues et al [45] in Dirac–Fock approximation
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