Absolute total cross sections for electron-impact double ionization of Ar4+. The uncertainties are relative only at the one-standard-deviation level. The total uncertainty is ±9% at a high confidence level corresponding to 90% confidence for the relative uncertainties for a typical point near the peak of the cross section. Reference: M. S. Pindzola et al., Phys. Rev. A 29, 1749 (1984).

             Energy         Cross Section
              (eV)           (10-18 cm2)
             154         0.026 ± 0.030
             190         0.090 ± 0.041
             241         0.039 ± 0.024
             290         0.091 ± 0.034
             340         0.298 ± 0.042
             364         0.546 ± 0.042
             390         0.705 ± 0.056
             438         0.876 ± 0.039
             489         0.923 ± 0.043
             537         1.173 ± 0.033
             588         1.223 ± 0.049
             690         1.387 ± 0.057
             785         1.427 ± 0.031
             886         1.387 ± 0.030
             982         1.336 ± 0.040
            1181         1.280 ± 0.038
            1787         1.188 ± 0.037

Return to Cross Section IndexReturn to IntroductionReturn to MIRF HomepageReturn to CFADC Homepage

Last Modified: Friday, January 10, 1997