Ibrahima Sakho 
Screening Constant by Unit Nuclear Charge Method [PDF ebook] 
Description and Application to the Photoionization of Atomic Systems

1. Different processes of photoionization, Rydberg series
2. Experimental and theoretical methods of photoionization
3. General formalism of the screen constant method per unit of nuclear charge applied to photoionization
4. Applications to the calculations of the natural energies and natural widths of the resonance states of multi-electron atomic systems
5. Resonant photonization of sulfur S and ions
6. Advantages and limitations of the CECN formalism

Ibrahima Sakho, Assane Seck University of Ziguinchor, Senegal.