Ka. Cowen et al., OPTIMIZING INTERNAL EXCITATION OF H5O2-ION BEAM BY GLANCING COLLISIONS WITH ARGON - A MULTIPLE COLLISION ANALYSIS( IN A FAST), Chemical physics letters, 229(6), 1994, pp. 628-632
Glancing collisions of H5O2+ in a fast ion beam with argon have been s
hown to impart an average of 1 eV of internal energy to a large fracti
on of the incident H5O2+ molecules (6.4%) without knocking them out of
the beam. Collision-induced dissociation studies have been performed
for attenuations of up to 95%. A multiple collision theory is applied
to the parent attenuation and fragment appearance data providing a qua
ntitative window on the internal excitation of H5O2+ parent ions. Pros
pects for detecting infrared emission from molecular ions in this way
are discussed.