Absolute cross sections for electron-impact single ionization of O4+. The uncertainties listed are one standard deviation counting statistics. Total absolute uncertainty is ±8% at high confidence corresponding to 90% confidence level for the statistical uncertainties. Reference: R. A. Falk et al. , Phys. Rev. A28, 91 (1983).


       Energy       Cross section
        (eV)        (10-18 cm2)
         104        0.09  ± 0.06
         109        0.37  ± 0.05
         113        0.48  ± 0.06
         118        0.79  ± 0.05
         128        1.08  ± 0.07
         143        1.61  ± 0.05
         167        2.20  ± 0.08
         194        2.54  ± 0.07
         240        2.81  ± 0.04
         288        2.93  ± 0.03
         338        2.88  ± 0.03
         387        2.87  ± 0.03
         485        2.66  ± 0.02
         520        2.67  ± 0.03
         544        2.60  ± 0.04
         570        2.67  ± 0.03
         584        2.70  ± 0.02
         604        2.65  ± 0.03
         634        2.71  ± 0.03
         663        2.60  ± 0.05
         693        2.59  ± 0.05
         783        2.38  ± 0.02
         980        2.04  ± 0.03
        1177        1.87  ± 0.03
        1475        1.46  ± 0.02

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Last Modified: Friday, January 10, 1997