Energy levels and radiative transition rates for Ba XLVIII

2016 ◽  
Vol 107 ◽  
pp. 367-405 ◽  
Author(s):  
Indu Khatri ◽  
Arun Goyal ◽  
Sunny Aggarwal ◽  
A.K. Singh ◽  
Man Mohan
Keyword(s):  
Energy Levels ◽  
Radiative Transition ◽  
Transition Rates

Theoretical photoionization study of Ti9+ ion

2020 ◽  
Author(s):  
Hongbin Wang ◽  
Gang Jiang
Keyword(s):  
Cross Sections ◽  
Energy Levels ◽  
Radiative Transition ◽  
High Energy ◽  
Low Energy ◽  
Transition Rates ◽  
Channel Coupling ◽  
R Matrix ◽  
Good Consistency ◽  
Good Agreement

Photoionization (PI) of Ti<sup>9+</sup> ion is investigated by the Dirac R-matrix method. Multi-Configuration Dirac-Fock (MCDF) calculations are performed to construct accurate target functions. Good agreement of energy levels and radiative transition rates indicate the accuracy of target functions. PI cross sections show good consistency between length and velocity forms. The results are consistent with the previous theoretical values in high-energy regions. Partial waves contribution to the total PI cross sections are discussed for the ground and metastable states. Moreover, the PI cross sections are dominated by many resonance structures and affected by the channel coupling effects in low-energy region. In addition to providing data for the Opacity Project TOPbase, the present work promotes plasma simulation and diagnosis.

Inner-shell excitation energy levels, and radiative and Auger transitions of B-like nitrogen

2016 ◽  
Vol 94 (11) ◽  
pp. 1119-1124
Author(s):  
Chao Chen ◽  
Bingcong Gou ◽  
Chunmei Zhang
Keyword(s):  
Excitation Energy ◽  
Saddle Point ◽  
Energy Levels ◽  
Radiative Transition ◽  
Transition Rates ◽  
First Order ◽  
Complex Rotation ◽  
Background Data ◽  
Rotation Methods ◽  
First Order Perturbation

Inner-shell excitation energy levels, and radiative and Auger transitions of the 1s2s22p2, 1s2s22p3p, 1s2s2p3, 1s2p4, and 1s2p33p 2,4L (L = S, P, D) resonances for B-like nitrogen are calculated using the saddle-point variation and saddle-point complex-rotation methods. The first-order perturbation theory is used to calculate relativistic and mass polarization corrections. Present autoionization energy levels, radiative transition rates and wavelengths, Auger rates, and Auger electron energies for these resonances agree well with theoretical and experimental data available in the literature, and will provide valuable background data for astrophysics and plasma physics in future.

Kα transition probabilities of C-like to F-like Al ions

2015 ◽  
Vol 93 (3) ◽  
pp. 267-270
Author(s):  
Cuicui Sang ◽  
Feng Chen ◽  
Chao Chen ◽  
Bingcong Gou
Keyword(s):  
Transition Probabilities ◽  
Energy Levels ◽  
Emission Spectra ◽  
Radiative Transition ◽  
Transition Rates ◽  
Atomic Structures ◽  
Radiative Transitions ◽  
Electron Correlation Effects ◽  
Reasonable Description ◽  
Spectral Intensities

Kα radiative transitions of C-like to F-like Al ions are studied using the multiconfiguration Dirac–Fock (MCDF) method. The fully relativistic MCDF approach was specifically designed to calculate atomic structures and radiative transition rates, and hence it ensures a reasonable description of the emission effects and spectral intensities. The energies and wavefunctions, corresponding mixing coefficients, the influence of electron correlation effects on energy levels, and radiative transition rates for C-like to F-like Al ions are investigated in detail. Good agreement is found between the calculated Kα emission spectra in this work and the spectra from experimental measurements.

Energy levels and radiative transition rates for Ge XXXI, As XXXII, and Se XXXIII

2014 ◽  
Vol 100 (4) ◽  
pp. 859-985 ◽  
Author(s):  
Sunny Aggarwal ◽  
J. Singh ◽  
A.K.S. Jha ◽  
Man Mohan
Keyword(s):  
Energy Levels ◽  
Radiative Transition ◽  
Transition Rates

Energy levels and transition rates for Al-like Cu XVII

2019 ◽  
Vol 127-128 ◽  
pp. 140-161 ◽  
Author(s):  
Y.W. Liu ◽  
R. Si ◽  
C.Y. Zhang ◽  
K. Wang ◽  
Y.X. Cai ◽  
...  
Keyword(s):  
Energy Levels ◽  
Transition Rates

RELATIVISTIC ENERGY, OSCILLATOR STRENGTHS AND TRANSITION RATES OF THE 1s2 2 ln l 1S(m)(n =2–6, m1–5) STATES FOR Be-LIKE SYSTEM

2005 ◽  
Vol 16 (06) ◽  
pp. 951-968 ◽  
Author(s):  
MENG ZHANG ◽  
BING-CONG GOU
Keyword(s):  
Experimental Data ◽  
Energy Levels ◽  
Oscillator Strengths ◽  
Relativistic Energy ◽  
Transition Rates ◽  
Isoelectronic Sequence ◽  
Polarization Effects ◽  
First Order ◽  
Variational Calculations ◽  
First Order Perturbation

Variational calculations are carried out with a multiconfiguration-interaction wave function to obtain the relativistic energies of the 1s2 2 ln l 1 S (m)(n =2–6, m1–5) states for the beryllium isoelectronic sequence (Z =4–10). Relativistic corrections and the mass polarization effects are evaluated with the first-order perturbation theory. The identifications of the energy levels for 1s2 2 ln l 1 S (m)(n =2–6, m1–5) states in the Be-like ions are reported. The oscillator strengths, transition rates and wavelengths are also calculated. The calculated results are compared with other theoretical and experimental data in the literature.

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