Electron Excitation, Dissociation and Ionization of H₂, D₂, T₂, Simple Hydrocarbons and Their Ions

This paper considers the electronic excitation, dissociation and ionization processes for H 2 , D 2 , T 2 , simple hydrocarbons and their ions, when bombarded by electrons. A survey is given of the different experimental cross-section results and how their consistency can be checked with analyses making use of various sum rules. Isotope effects are considered as well.