Experimental electron-impact ionization cross sections for Fe9+. Uncertainties here are one-standard-deviation relative only. Absolute uncertainty for a typical point near the peak cross section is ±8% at a 90% confidence level. Reference: D.C. Gregory et al., Phys. Rev. A 34, 3657 (1986).

             Energy         Cross Section
              (eV)           (10-18 cm2)
               145           0.09 ± 0.07
               170          -0.02 ± 0.09
               182           0.19 ± 0.11
               194           0.04 ± 0.06
               211          -0.05 ± 0.08
               219           0.23 ± 0.07
               243           0.42 ± 0.05
               268           0.52 ± 0.05
               293           0.96 ± 0.04
               318           1.13 ± 0.05
               343           1.38 ± 0.04
               367           1.50 ± 0.05
               392           1.64 ± 0.05
               443           1.73 ± 0.05
               492           1.80 ± 0.03
               540           1.91 ± 0.06
               565           2.03 ± 0.07
               589           1.99 ± 0.04
               639           2.04 ± 0.04
               690           2.03 ± 0.03
               740           2.04 ± 0.04
               789           2.16 ± 0.03
               839           1.97 ± 0.06
               888           2.07 ± 0.03
               992           1.95 ± 0.16
              1094           1.87 ± 0.07
              1191           1.68 ± 0.05
              1247           1.78 ± 0.05
              1299           1.65 ± 0.05
              1400           1.67 ± 0.05
              1504           1.50 ± 0.05

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Last Modified: Friday, January 10, 1997