DISSOCIATION OF SO2 INTO METASTABLE FRAGMENTS FOLLOWING ELECTRON 
IMPACT.
W.Kedzierski, C.Malone and J.W.McConkey
School of Physical Sciences, University of Windsor, Ontario N9B 3P4,
Canada.
A novel method is employed to selectively detect O(1S) fragments 
following dissociation of SO2 by electron impact. A crossed beam 
apparatus with a pulsed electron beam is used to obtain 
time-of-flight, and hence energy, spectra of the O fragments. Absolute 
cross section data are presented over the energy range from threshold 
to 400 eV. Dissociation mechanisms are discussed.