Abbreviated Journal Title
Phys. Rev. A
Ionization Cross-Sections; Resolved Photoelectron Spectrometry; Synchrotron Radiation; Branching Ratios; Spectroscopy; Chlorine; Photoionisation; Photoabsorption; Threshold; Electron; Optics; Physics; Atomic; Molecular & Chemical
The valence shell photoionization branching ratios of atomic oxygen are measured at the multiplet term level in a synchrotron-radiation-based electron spectrometry experiment and calculated using the multiconfiguration Hartree-Fock (MCHF) method for photon energies between 20 and 212 eV. The 2p (S-4,D-2,P-2) branching ratios, 2s P-2 to 2s P-4 intensity ratio, and 2s to 2p cross-section ratio for removal of a 2s of 2p electron are presented, and satisfactory agreement between the experiment and the MCHF calculation is found. In addition, the relative photoionization cross section is measured between 24 and 122 eV and is compared with calculations and a previous absolute cross-section measurement. Good agreement between the experimental and MCHF results is seen.
Physical Review A
Schaphorst, S. J.; Krause, M. O.; Caldwell, C. D.; Saha, H. P.; Pahler, M.; and Jiménez-Mier, J., "Photoionization Of Atomic Oxygen At The Multiplet Term Level From 20 To 212 Ev" (1995). Faculty Bibliography 1990s. 3014.