Plasma Models of Atom and Radiative-Collisional Processes

Plasma models of atoms (PMA) have been attractive in atomic physics for many years in spite of the rapid development of computational methods. An obvious advantage of these models is in their simplicity and versatility which allow the description of many properties of complex atoms and ions on a common base. These include the interaction potentials of atoms with charged particles [1,2], photoionization cross sections of atoms [3, 4], static and dynamic polarizabilities [1, 5–8] and other properties.