A Discussion on photoelectron spectroscopy - Angular distributions of photoelectrons and partial photoionization cross-sections

Abstract
An experimental arrangement is given for measuring the angular distribution of photoelectrons. The asymmetry coefficient B is found to be 0.3 for Ar, and 0.3 and 0.12 for N2 at 584 A when the residual ion core is left in its X2z and A2II states, respectively. The partial photoionization cross-sections are given for O2 at 186, 209, 247, 330, and 460 A. New ionization potentials for O2 are found at 23.5, 24.6 and 27.3 eV ± 0.3 eV. The effects of autoionizing transitions on the population of vibrational states of N+2 are illustrated.

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