Absolute cross sections for electron-impact single ionization of N4+. The uncertainties listed are 90% confidence level counting statistics. Total absolute uncertainty is ±8% at high confidence corresponding to 90% confidence level for the statistical uncertainties. Reference: D. H. Crandall et al., J. Phys. B 12, L249 (1979).


       Energy       Cross section
        (eV)        (10-18 cm2)
          95        0.01 ± 0.05
          98.9      0.09 ± 0.04
         104        0.19 ± 0.04
         108.6      0.36 ± 0.08
         114        0.56 ± 0.08
         122        0.74 ± 0.04
         140        0.93 ± 0.04
         165        1.21 ± 0.05
         191        1.27 ± 0.05
         241        1.45 ± 0.04
         288        1.47 ± 0.04
         335        1.40 ± 0.05
         387        1.32 ± 0.03
         397        1.33 ± 0.04
         428        1.41 ± 0.04
         437        1.42 ± 0.03
         458        1.44 ± 0.04
         487        1.46 ± 0.04
         526        1.42 ± 0.04
         546        1.41 ± 0.04
         586        1.40 ± 0.04
         684        1.35 ± 0.04
         782        1.30 ± 0.02
         980        1.22 ± 0.03
        1177        1.16 ± 0.04
        1473        1.05 ± 0.05

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Last Modified: Friday, January 10, 1997