Electron-impact double ionization cross sections for U13+. Uncertainties are typical relative uncertainties, which combine one standard deviation on counting statistics with uncertainties in the form factor. Total uncertainties are approximately ±10% at a 90% confidence level for a typical point near the peak cross section. Note that the cross section is listed in units of 10-19 cm2. Reference: D.C. Gregory et al., Phys. Rev. A 41, 106 (1990).

         Energy         Cross Section
          (eV)           (10-19 cm2)
          487.8          -0.08 ± 0.15
          500.6           0.08 ± 0.13
          510.4           0.00 ± 0.14
          520.2          -0.18 ± 0.12
          530.1           0.13 ± 0.15
          538.4           0.13 ± 0.09
          549.7           0.47 ± 0.14
          559.6           0.60 ± 0.16
          569.3           0.81 ± 0.11
          579.1           1.03 ± 0.16
          589.1           1.56 ± 0.14
          598.7           1.73 ± 0.14
          608.7           1.83 ± 0.18
          618.5           2.43 ± 0.14
          628.4           3.03 ± 0.14
          638.8           2.85 ± 0.22
          648.3           3.08 ± 0.20
          658.1           3.60 ± 0.12
          667.9           3.74 ± 0.17
          677.9           4.24 ± 0.13
          688.3           4.30 ± 0.04
          697.5           4.67 ± 0.13
          707.3           5.15 ± 0.13
          717.3           5.17 ± 0.13
          727.0           5.36 ± 0.15
          736.8           5.56 ± 0.14
          746.9           5.85 ± 0.11
          756.7           6.07 ± 0.11
          766.7           6.02 ± 0.11
          776.5           6.37 ± 0.11
          784.4           6.63 ± 0.08
          795.9           6.86 ± 0.11
          805.7           6.98 ± 0.14
          815.6           7.28 ± 0.17
          825.5           7.23 ± 0.11
          835.5           7.28 ± 0.13
          845.5           7.59 ± 0.16
          855.4           8.01 ± 0.15
          865.3           8.05 ± 0.13
          875.0           8.26 ± 0.13
          885.6           8.46 ± 0.10
          894.8           8.81 ± 0.14
          904.8           8.75 ± 0.13
          914.7           9.05 ± 0.13
          924.4           8.90 ± 0.13
          934.3           8.81 ± 0.12
          944.3           8.76 ± 0.12
          954.2           9.01 ± 0.15
          964.1           9.61 ± 0.22
          974.0           9.54 ± 0.13
          984.5           9.58 ± 0.12
         1083             9.79 ± 0.13
         1182            10.07 ± 0.12
         1281            10.57 ± 0.09
         1380            10.81 ± 0.10
         1479            10.78 ± 0.08

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Last Modified: Friday, January 10, 1997