We have studied the time of flight spectra of molecular ions and charged fragments resulting from collisions of 2 keV/amu He2+ and 1 keV/amu O-q+ (q = 1-5) ions with CO and H-2 molecules respectively. We found that the energy release from dissociation of CO after He2+ impact is smaller than what one calculates assuming pure Coulomb explosion. For the O9+ + H-2 system we can identify two processes leading to H+ formation, one with an energy gain for the two protons of around 14 eV, the other yielding very slow fragments. The latter is probably due to one-electron transfer processes and cannot be explained assuming pure Frank-Condon type transitions.
|Tijdschrift||Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms|
|Nummer van het tijdschrift||1-4|
|Status||Published - mei-1995|
|Evenement||7th International Conference on the Physics of Highly Charged Ions (HCI-94) - , Austria|
Duur: 19-sep-1994 → 23-sep-1994