Ionization cross section data for Ar8+. The second column lists the measured data with their absolute uncertainties. The third column gives data reduced by 0.30E-½ (where E is in eV). Absolute uncertainties in the third column include the contribution from the uncertainties due to correction for space-charge modulation. The absolute uncertainties listed are at the one-standard-deviation level. Reference: Y. Zhang et al., Phys. Rev. A 44, 4368 (1991).

                               Ionization cross sections (10-18 cm2)

             Energy                               Data after the correction
             E (eV)           Measured data      for space-charge modulation
               50.0           0.053 ± 0.018             0.006 ± 0.019
               70.3           0.052 ± 0.028             0.012 ± 0.028
               74.5           0.039 ± 0.019             0.001 ± 0.019
               98.4           0.034 ± 0.002             0.001 ± 0.003
              121.1           0.011 ± 0.015            -0.019 ± 0.015
              145.1           0.014 ± 0.013            -0.014 ± 0.013
              148.1           0.024 ± 0.012            -0.003 ± 0.012
              169.1           0.036 ± 0.011             0.010 ± 0.011
              193.0           0.035 ± 0.016             0.011 ± 0.017
              196.8           0.034 ± 0.011             0.010 ± 0.011
              200.0           0.006 ± 0.012            -0.017 ± 0.012
              210.8           0.033 ± 0.010             0.010 ± 0.010
              221.0           0.050 ± 0.014             0.028 ± 0.014
              235.0           0.028 ± 0.012             0.006 ± 0.012
              241.0           0.026 ± 0.008             0.004 ± 0.008
              245.6           0.046 ± 0.003             0.024 ± 0.003
              258.1           0.022 ± 0.001             0.001 ± 0.011
              264.9           0.018 ± 0.008            -0.003 ± 0.008
              268.3           0.018 ± 0.007            -0.002 ± 0.008
              281.8           0.040 ± 0.009             0.020 ± 0.009
              289.0           0.041 ± 0.008             0.022 ± 0.008
              294.0           0.065 ± 0.004             0.045 ± 0.004
              304.5           0.050 ± 0.008             0.031 ± 0.008
              313.1           0.052 ± 0.007             0.033 ± 0.007
              328.0           0.064 ± 0.008             0.045 ± 0.008
              342.3           0.088 ± 0.010             0.070 ± 0.010
              351.9           0.068 ± 0.007             0.051 ± 0.007
              374.9           0.082 ± 0.006             0.065 ± 0.006
              385.6           0.073 ± 0.005             0.056 ± 0.005
              391.8           0.089 ± 0.005             0.072 ± 0.005
              407.3           0.092 ± 0.010             0.075 ± 0.010
              421.6           0.110 ± 0.011             0.094 ± 0.011
              441.0           0.174 ± 0.010             0.159 ± 0.011
              445.2           0.218 ± 0.016             0.203 ± 0.016
              489.0           0.374 ± 0.024             0.359 ± 0.024
              492.0           0.354 ± 0.024             0.339 ± 0.024
              538.0           0.514 ± 0.032             0.500 ± 0.032
              542.0           0.481 ± 0.033             0.466 ± 0.034
              588.0           0.597 ± 0.037             0.584 ± 0.037
              591.3           0.615 ± 0.038             0.602 ± 0.038

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Last Modified: Friday, January 10, 1997