ELECTRON-IMPACT EXCITATION FOR F-LIKE SELENIUM

Electron-impact excitation cross sections from the low-lying 1s(2)2s(2 )2p(5) state of F-like selenium to singly excited states have been cal culated. Our relativistic distorted-wave Born procedures have been use d for the present calculations. Instead of atomic structure code GRASP , the latest version GRASP(2) code is used as multiconfiguration Dirac -Fock atomic structure calculations. The present results have been com prehensively compared with earlier calculations. One of the motivation s for the present work is that there are some discrepancies between ou r results and those of others. [S10502947(97)106111-4].