SUPERPOSITION OF CONFIGURATIONS AND ATOMIC OSCILLATOR STRENGTHS - BORON ISOELECTRONIC SEQUENCE

Oscillator strengths have been computed for transitions between a number of low-lying levels in B I and Ne VI. The wave functions were computed by the method of superposition of configurations, utilizing the pseudonatural orbital technique to accelerate convergence. The asymptotic limiting large-Z f values were also computed, using the nuclear charge perturbation expansion. Together with previous theoretical data from C II, these results have been used to make a graphical study of the f-value behavior for these transitions along the isoelectronic sequence. Comparisons were made between experiment and the predictions of the Hartree-Fock and charge-expansion methods as well as the present calculations. Finally, these theoretical curves were used to predict individual f values for each member of the sequence through Z=15 (P XI). © 1969 The American Physical Society.