Calculated Auger, Coster-Kronig, super Coster-Kronig, and radiative transition rates are used to compute atomic $M$-shell Auger, Coster-Kronig, and fluorescence yields. Comparison is made with five… Expand

By using a characteristic Green's function for an exactly solvable Schroedinger equation with an approximation to the central potential of Hermann and Skillman, the cross section for nonresonant two-… Expand

Using the generalized oscillator-strength formulation of the Born approximation, the author calculated electron ionization cross sections for all significant subshells of every fourth atom with 58<… Expand

An unsuccessful attempt was made to observe gain in low pressure sodium vapor at 372 A at an x-ray pumping power level of 0.1 GW/cm(2) . As a result we suggest that high density alkali-earth vapors… Expand

The excellent agreement between recent converged close-coupling calculations of electron ionization cross sections of atoms and ions and plane-wave Born approximation (PWBA) calculations leads to the… Expand