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Atoms 2016, 4(3), 22;

Atomic Structure Calculations and Study of Plasma Parameters of Al-Like Ions

Department of Physics and Astrophysics, University of Delhi, Delhi-110007, India
Department of Physics, D.D.U. College, University of Delhi, Delhi-110015, India
Department of Applied Physics, Delhi Technological University, Delhi-110042, India
Department of Physics, Shyamlal College, University of Delhi, Delhi-110032, India
Author to whom correspondence should be addressed.
Academic Editor: James F. Babb
Received: 7 November 2015 / Revised: 27 June 2016 / Accepted: 30 June 2016 / Published: 11 July 2016
(This article belongs to the Section Atomic, Molecular and Nuclear Spectroscopy and Collisions)
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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. View Full-Text
Keywords: energy levels; radiative data; transition wavelengths; line intensity energy levels; radiative data; transition wavelengths; line intensity

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Goyal, A.; Khatri, I.; Singh, A.K.; Mohan, M.; Sharma, R.; Singh, N. Atomic Structure Calculations and Study of Plasma Parameters of Al-Like Ions. Atoms 2016, 4, 22.

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