Excitation of Lα- Hydrogen Atomic Line in the Collisions of H₃⁺ and H₂⁺ Molecules with He, Ar, O₂ Targets

We have presented results of experimental measurment of the excitation function of hydrogen atomic line Lα (I=121.6nm), which was emitted during dissociative excitation processes of hydrogen molecules at collisions H₂⁺, H₃⁺ - He, Ar, O₂ in the energy interval 3-9 keV of ion. It was determined that the intensity of radiation depends on internal (vibrational) excitation of H₃⁺ molecular ion in the initial ground electronic state. (author)