Dissociative ionization of H₂ by fast fully stripped ions

Abstract

The ratios of the cross sections for the formation of H⁺ and H²⁺ from H₂ by the impact of fast fully stripped ions (C⁶⁺, O⁸⁺, S¹⁶⁺) have been measured at various incident projectile energies in order to understand the projectile charge and energy dependence on two-electron processes. The measured values have been corrected for the small contribution from dissociative ionization through single electron process. A comparison of the existing low charge projectile data with the present measurements tends to show a universal scaling behaviour for projectile charge and velocity.