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Issue 41, 2011
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Single and multiple photoionisation of H2S by 40–250 eV photons

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Abstract

Multi-electron coincidence measurements on photoionisation of H2S have been carried out at photon energies from 40 to 250 eV. They quantify molecular field effects on the Auger process in detail and are in good agreement with the existing theory. Spectra of core-valence double ionisation of H2S are presented and partially analysed. Auger decays from the core-valence states produce triply charged product spectra with unexplained and surprising intensity distributions. Triple ionisation by the double Auger process from 2p hole states shows little effect of the molecular field splitting, but includes a substantial contribution from cascade processes, some involving dissociation in intermediate states. The onset of triple ionisation at the molecular geometry is determined as 61 ± 0.5 eV.

Graphical abstract: Single and multiple photoionisation of H2S by 40–250 eV photons

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Publication details

The article was received on 23 May 2011, accepted on 15 Aug 2011 and first published on 16 Sep 2011


Article type: Paper
DOI: 10.1039/C1CP21654F
Citation: Phys. Chem. Chem. Phys., 2011,13, 18428-18435
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    Single and multiple photoionisation of H2S by 40–250 eV photons

    J. H. D. Eland, R. F. Fink, P. Linusson, L. Hedin, S. Plogmaker and R. Feifel, Phys. Chem. Chem. Phys., 2011, 13, 18428
    DOI: 10.1039/C1CP21654F

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