Single photon double ionization of SF6 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 SF6 up to a binding energy of ,48 eV is presented and accurately interpreted with the aid of Green’s function ADCs2d calculations. Spectra which reflect either mainly direct or mainly indirect svia interatomic coulombic decay of F 2s holesd double ionization of SF6 are extracted from the coincidence map and discussed. A previous, very low value for the onset of double ionization of SF6 is found to energetically coincide with a peak structure related to secondary inelastic scattering events.
Complete valence double photoionisation of SF6
STORCHI, LORIANO;TARANTELLI, Francesco
2005
Abstract
Single photon double ionization of SF6 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 SF6 up to a binding energy of ,48 eV is presented and accurately interpreted with the aid of Green’s function ADCs2d calculations. Spectra which reflect either mainly direct or mainly indirect svia interatomic coulombic decay of F 2s holesd double ionization of SF6 are extracted from the coincidence map and discussed. A previous, very low value for the onset of double ionization of SF6 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.
