Experimental electron-impact cross sections for single ionization of Ar5+. Uncertainties are one standard deviation from counting statistics only. Total uncertainty for a typical point near the peak cross section is ±18% at 90% confidence level. Reference: D. C. Gregory and D. H. Crandall, unpublished (1982).

             Energy         Cross Section
              (eV)           (10-18 cm2)
               85.4        -0.43 ± 0.31
               95.0         0.67 ± 0.29
              100.4         1.39 ± 0.47
              110.6         2.24 ± 0.39
              111.5         3.26 ± 0.50
              125           3.64 ± 0.38
              150           3.80 ± 0.24
              174           4.36 ± 0.22
              204           4.46 ± 0.21
              224           4.69 ± 0.22
              243           4.81 ± 0.32
              264           5.70 ± 0.16
              279           5.85 ± 0.52
              293           5.97 ± 0.29
              303           6.22 ± 0.13
              331           5.65 ± 0.29
              360           5.58 ± 0.28
              393           5.62 ± 0.07
              490           5.43 ± 0.44
              589           4.99 ± 0.41
              737           4.53 ± 0.42
              886           4.01 ± 0.40
             1086           3.74 ± 0.40
             1285           3.64 ± 0.40
             1486           3.39 ± 0.39

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Last Modified: Friday, January 10, 1997