Secondary electron distributions,ionization cross sections and loss functions for O(I)–O(V)

An analytic atomic independent-particle-model is used to generate wave functions for the bound and ionization continuum states of O(I), O(II), O(III), O(IV), and O(V). These wave functions are used in conjunction with the Born approximation to generate continuum generalized oscillator strengths (GOS). From these GOS, we obtain secondary electron distributions, which we represent by smooth analytic functions. From the secondary electron distributions, we obtain electron impact ionization cross sections, which are compared to experiment. Finally, we compute the loss functions.