Effect of strong microfields on the composition of an ionized gas of alkali metals

The composition of a three-component nonideal potassium and cesium plasma at T = 10,000 K and p not greater than 100 MPa is calculated taking into account the destruction of the ground and excited states of valence electrons in atoms by quasistatic microfields. The pressure dependence of the degree of ionization has a minimum at p = 10 MPa. At p = 100 MPa the degree of ionization is equal to 0.5-0.7. The computed values of the electrical conductivity of the plasma are compared with the experimental data. The dependences of the Coulombic logarithm on the degree of nonideality obtained from the analysis of the experimental data on the electrical conductivity are presented.