Memorias de investigación
Artículos en revistas:
O 1s excitation and ionization processes in the CO2 molecule studied via detection of low-energy fluorescence emission
Año:2011
Áreas de investigación
  • Ingenierías
Datos
Descripción
Oxygen 1s excitation and ionization processes in the CO2 molecule have been studied with dispersed and non-dispersed fluorescence spectroscopy as well as with the vacuum ultraviolet (VUV) photon?photoion coincidence technique. The intensity of the neutral O emission line at 845 nm shows particular sensitivity to core-to-Rydberg excitations and core?valence double excitations, while shape resonances are suppressed. In contrast, the partial fluorescence yield in the wavelength window 300?650 nm and the excitation functions of selected O+ and C+ emission lines in the wavelength range 400?500 nm display all of the absorption features. The relative intensity of ionic emission in the visible range increases towards higher photon energies, which is attributed to O 1s shake-off photoionization. VUV photon?photoion coincidence spectra reveal major contributions from the C+ and O+ ions and a minor contribution from C2+. No conclusive changes in the intensity ratios among the different ions are observed above the O 1s threshold. The line shape of the VUV?O+ coincidence peak in the mass spectrum carries some information on the initial core excitation
Internacional
Si
JCR del ISI
Si
Título de la revista
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
ISSN
0953-4075
Factor de impacto JCR
1,902
Información de impacto
Volumen
44
DOI
10.1088/0953-4075/44/16/165103
Número de revista
16
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0
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11
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Participantes
  • Autor: A. Kivimaki CNR-IOM
  • Autor: Jesus Alvarez Ruiz UPM
  • Autor: T.J. Wasowicz Department of Physics of Electronic Phenomena,
  • Autor: C. Callegari Sincrotrone Trieste
  • Autor: M. de Simone CNR-IOM
  • Autor: M. Alagia CNR-IOM
  • Autor: R. Ritchter Sincrotrone Trieste
  • Autor: M. Moreno CNR-IMIP
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
  • Centro o Instituto I+D+i: Instituto de Fusión Nuclear