Photoionization of the $3s^{2}3p^4{}^{3}P$ and the $3s^{2}3p^4{}^{1}D,{}^{1}S$ states of sulfur: experiment and theory

Abstract

Photoionization of neutral atomic sulfur in the ground and metastable states was studied experimentally at a photon energy resolution of 44 meV FWHM. Relative cross section measurements were recorded by using tunable vacuum ultraviolet (VUV) radiation in the energy range 9 -- 30 eV obtained from a laser-produced plasma and the atomic species were generated by photolysis of molecular precursors. Photoionization of this atom is characterized by multiple Rydberg series of autoionizing resonances superimposed on a direct photoionization continuum. A wealth of resonance features observed in the experimental spectra are spectroscopically assigned and their energies and quantum defects tabulated. The cross-section measurements are compared with state-of-the-art theoretical cross-section calculations obtained from the Dirac Coulomb R-matrix method. Resonances series in the spectra are identified and compared indicating similar features in both the theoretical and experimental spectra.

Accepted for publication in Physical Review A, 20 pages, 8 figures, 3 tables

References in corpus (4)

• The Abundances of Light Neutron-Capture Elements in Planetary Nebulae II. s-process Enrichments and Interpretation
• Photoionization Cross-Sections for the trans-iron element Se${}^{+}$ from 18 eV to 31 eV
• Photoionization cross section calculations for the halogen-like ions Kr${}^{+}$ and Xe${}^{+}$
• Valence-shell photoionization of Ag-like Xe${}^{7+}$ ions : experiment and theory

Cited by in corpus (3)

• Photoionization of the valence shells of the neutral tungsten atom
• Photoionisation of Cl${}^{+}$ from the $3s^{2}3p^4{}^3{P}_{2,1,0}$ and the$3s^{2}3p^4{}^1{D}_2{,}^1{S}_0$ states in the energy range 19 - 28 eV
• Photoionisation of Ca${}^{+}$ ions in the valence-energy region 20$\sim$eV~--~56$\sim$eV : experiment and theory