The electron impact ionization of CO2 molecules has been studied in order to determine the dissociative paths leading to charged fragments. The electron impact energy (EIE) ranged in the interval 40-130 eV. Time-of-flight spectroscopy was used to obtain the kinetic-energy distribution (KED) extending down to thermal kinetic-energy fragments. We have evaluated the contribution of indirect processes leading to charged fragments through CO2 autoionization. The threshold for C2+ production from CO2 has been measured and a possible production channel is analysed.
Kinetic energy distributions of charged fragments from CO2 dissociative ionisation
DI GIROLAMO, Paolo;
1994-01-01
Abstract
The electron impact ionization of CO2 molecules has been studied in order to determine the dissociative paths leading to charged fragments. The electron impact energy (EIE) ranged in the interval 40-130 eV. Time-of-flight spectroscopy was used to obtain the kinetic-energy distribution (KED) extending down to thermal kinetic-energy fragments. We have evaluated the contribution of indirect processes leading to charged fragments through CO2 autoionization. The threshold for C2+ production from CO2 has been measured and a possible production channel is analysed.File in questo prodotto:
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