Excitation of Triplet D Levels of Barium Atoms in Collisions with Electrons

摘要

The excitation of triplet D levels of the barium atom by slow electrons, which gives rise to optical emission due to spontaneous transitions from these levels, is experimentally studied. 85 excitation cross sections are measures at an exciting electron energy of 30 eV. 16 optical excitation functions are recorded within the electron energy range of 0-200 eV. The results obtained for seven transitions are compared with previously published experimental data.