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Single and multiple photoionisation of H(2)S by 40-250 eV photons
Stockholm University, Faculty of Science, Department of Physics.
Stockholm University, Faculty of Science, Department of Physics.
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2011 (English)In: Physical Chemistry, Chemical Physics - PCCP, ISSN 1463-9076, E-ISSN 1463-9084, Vol. 13, no 41, 18428-18435 p.Article in journal (Refereed) Published
Abstract [en]

Multi-electron coincidence measurements on photoionisation of H(2)S 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 H(2)S 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.

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2011. Vol. 13, no 41, 18428-18435 p.
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Physical Sciences
URN: urn:nbn:se:su:diva-67355DOI: 10.1039/c1cp21654fISI: 000295731100021OAI: diva2:470182
authorCount :6Available from: 2011-12-28 Created: 2011-12-28 Last updated: 2011-12-28Bibliographically approved

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Linusson, PerFeifel, Raimund
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