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Single And Double Ionization Of Helium By Highly Charged Sulfur Ions, Karen M. Lifrieri
Single And Double Ionization Of Helium By Highly Charged Sulfur Ions, Karen M. Lifrieri
Masters Theses
Single and double ionization of helium by highly charged sulfur projectiles is investigated over an energy range of 0.16 to 1.6 MeV/u. Absolute cross sections for the processes of pure ionization, ionization associated with single capture, and ionization associated with single loss by S6,13+ projectiles were experimentally determined and compared with previous results and theories. Ratios of double-tosingle ionization for each outgoing projectile charge state were also determined and compared with theory. The pure ionization ratios for S6+ at the highest energies investigated show the q2/E dependence predicted by Knudsen et al. (1984). For S13+ …