Electron-impact single ionization cross sections for Cr7+. Uncertainties are typical relative uncertainties, which combine one standard deviation on counting statistics with uncertainties in the form factor. Total uncertainty for a typical point near the peak cross section is ±9% at 90% confidence level. Reference: M. Sataka et al., Phys. Rev. A 39, 2397 (1989).

             Energy         Cross Section
              (eV)           (10-18 cm2)
              118.9          0.01 ± 0.05
              124.5          0.00 ± 0.07
              134.5          0.03 ± 0.08
              143.7          0.11 ± 0.08
              153.8          0.28 ± 0.06
              163.7          0.53 ± 0.05
              173.9          0.51 ± 0.05
              183.0          0.58 ± 0.04
              185.5          0.70 ± 0.05
              187.8          0.79 ± 0.04
              189.3          0.78 ± 0.06
              191.7          1.05 ± 0.05
              193.1          0.98 ± 0.08
              195.3          1.24 ± 0.04
              197.1          1.28 ± 0.05
              199.2          1.37 ± 0.05
              200.8          1.34 ± 0.05
              202.9          1.53 ± 0.04
              213            1.80 ± 0.04
              223            2.19 ± 0.05
              232            2.40 ± 0.04
              242            2.46 ± 0.06
              252            2.61 ± 0.05
              272            2.89 ± 0.04
              292            3.05 ± 0.05
              312            3.27 ± 0.04
              331            3.32 ± 0.04
              341            3.33 ± 0.04
              351            3.31 ± 0.04
              371            3.45 ± 0.04
              391            3.45 ± 0.01
              440            3.53 ± 0.03
              489            3.57 ± 0.03
              539            3.55 ± 0.03
              589            3.65 ± 0.04
              639            3.74 ± 0.03
              686            3.74 ± 0.01
              737            3.75 ± 0.02
              786            3.69 ± 0.02
              833            3.72 ± 0.03
              883            3.59 ± 0.03
              932            3.64 ± 0.03
              983            3.51 ± 0.02
             1081            3.27 ± 0.02
             1171            3.08 ± 0.03
             1275            2.81 ± 0.02
             1370            2.71 ± 0.02
             1465            2.67 ± 0.02

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Last Modified: Friday, January 10, 1997