Autoionization spectra of Li I and Li II excited by H⁺and He⁺impact

Abstract

The electron spectra of autoionizing states of Li I and Li II were studied using H+ and He+ bombardment. Excitation energies of core-excited levels in Li I and Li II were measured, some of them to within +or-10 meV accuracy. For the metastable state (1s2s2p)4P0 an excitation energy of 57.385 eV was obtained.