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Photofragmentation of cyanogen upon carbon and nitrogen K-shell excitation by partial ion yield experiments

På svenska

Author

  • Gunnar Öhrwall
  • W. C. Stolte
  • R. Guillemin
  • S-W Yu
  • M. N. Piancastelli
  • D. W. Lindle

Summary, in English

Partial ion yield spectroscopy was used to study fragmentation processes in cyanogen after C 1s and N 1s photoexcitation. The interpretation of the core excitation spectrum mostly follows the literature, but the high resolution has in some cases allowed a more detailed assignment. Using the fact that in Rydberg states there is an intensity increase as the fragmentation process becomes more extensive compared to valence orbitals, we have been able to distinguish resonances with valence and Rydberg character. Furthermore, we have been able to assign features in the ionization continuum as arising from double excitations or shape resonances, by observation of the suppression of anion yield at shape resonances.

Department/s

Publishing year

2010

Language

English

Publication/Series

Journal of Physics B: Atomic, Molecular and Optical Physics

Volume

43

Issue

9

Document type

Journal article

Publisher

IOP Publishing

Topic

  • Natural Sciences
  • Physical Sciences

Status

Published

ISBN/ISSN/Other

  • ISSN: 0953-4075