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

In English

Författare

  • 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.

Publiceringsår

2010

Språk

Engelska

Publikation/Tidskrift/Serie

Journal of Physics B: Atomic, Molecular and Optical Physics

Volym

43

Issue

9

Dokumenttyp

Artikel i tidskrift

Förlag

IOP Publishing

Ämne

  • Natural Sciences
  • Physical Sciences

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0953-4075