Generalized oscillator strengths for calculation of molecular stopping Properties, some preliminary results: CO

摘要

Calculation of the stopping power of a target for a swift ion in the first Born approximation requires a konowledge of the complete generalized oscillator strenght distribution for the target if the Behte formulation including shell corrections is to be avioded. For all but the simplest systems, calculation of the full distribution is impossible. It is, however, possible to calculate the generalized oscillator strength correspoonding to s set of specific transitions. As it becomes experimentally possible to prepare oriented samples, the directional anisotropies, as well as total stopping characteristics of molecular targets also become interesting. We present results for the calculaton of the generalized oscillator strengths for several low lying transitions of the test system CO in the polarization propagator approximation and discuss its directional characteristics, sensitivity to the inclusion of correlation, and accuracy.