Electron stripping cross sections for fast, low charge state uranium ions

Cross sections for projectile electron loss for U"1"0"+ and U"2"8"+ colliding with H_2, N_2 and Ar were calculated using the n-body classical trajectory Monte Carlo method. The calculations include electrons on both nuclear centers and all electron-electron and electron-nuclear interactions between centers. Multiple ionization is inherently included in these many electron calculations. Overall, except for the H_2 target where the projectile stripping is overestimated by a factor of two, the calculated cross sections are in reasonable accord with available data and the recent beam lifetime measurements from GSI-Darmstadt. For energies less than 100 MeV/u, the N_2 and Ar cross sections do not scale as E"-"1"."0 as predicted by one-electron theories. (orig.)Available from TIB Hannover: RO 801(04-17) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman