Single photon double ionization of S F6 has been investigated at the photon energies 38.71, 40.814, and 48.372 eV by using a recently developed time-of-flight photoelectron-photoelectron coincidence spectroscopy technique which gives complete two-dimensional e- - e- spectra. The first complete single photon double ionization electron spectrum of S F6 up to a binding energy of ~48 eV is presented and accurately interpreted with the aid of Green's function ADC(2) calculations. Spectra which reflect either mainly direct or mainly indirect (via interatomic coulombic decay of F 2s holes) double ionization of S F6 are extracted from the coincidence map and discussed. A previous, very low value for the onset of double ionization of S F6 is found to energetically coincide with a peak structure related to secondary inelastic scattering events.
Complete valence double photoionization of SF6
STORCHI, LORIANO;
2005-01-01
Abstract
Single photon double ionization of S F6 has been investigated at the photon energies 38.71, 40.814, and 48.372 eV by using a recently developed time-of-flight photoelectron-photoelectron coincidence spectroscopy technique which gives complete two-dimensional e- - e- spectra. The first complete single photon double ionization electron spectrum of S F6 up to a binding energy of ~48 eV is presented and accurately interpreted with the aid of Green's function ADC(2) calculations. Spectra which reflect either mainly direct or mainly indirect (via interatomic coulombic decay of F 2s holes) double ionization of S F6 are extracted from the coincidence map and discussed. A previous, very low value for the onset of double ionization of S F6 is found to energetically coincide with a peak structure related to secondary inelastic scattering events.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
