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Fig. 2.

Electron-impact ionization cross sections for a) ground 3s2 3p6 1S0 and b) metastable 3s2 3p5 3d 3F4 levels of Fe8+. The SCADW data are presented by a dashed line for the total cross sections. The shaded areas show contributions from subshells for the DI process: 3s (yellow), 3p (green), 3d (blue).
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