Electron impact excitation of krypton clusters
Department of Physics, University of Windsor, Windsor, Ontario, N9B 3P4, Canada
Corresponding author: a firstname.lastname@example.org
Revised: 31 October 2001
Published online: 15 January 2002
A detailed study has been made of the fragmentation of neutral krypton clusters following electron impact. The vacuum ultraviolet fluorescence and metastable fragments were monitored using a time-of-flight technique. Fragment kinetic energy distributions were obtained, showing that the fastest fragments were ejected with energies near 1 eV. Slower fragments with a peak kinetic energy near 0.5 eV were observed to dominate the fragmentation at higher incident electron energies. At least six processes were observed to contribute to cluster break-up with some of these involving exciton production. At least three further processes involved vacuum ultraviolet photon production.
PACS: 34.80.Gs – Molecular excitation and ionization by electron impact / 36.40.-c – Atomic and molecular clusters
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2002