Electron-impact ionization of singly-charged neon ions

Absolute cross sections for electron-impact single and multiple ionization of Ne + leading to the formation of Ne q + ( q = 2–5) are reported. The animated crossed beams method is applied in the energy range from the respective thresholds up to 2.5 keV. The maximum cross sections are found to be (4.12 ± 0.21) × 10 −17 cm 2 , (1.42 ± 0.07) × 10 18 cm 2 , (2.57 ± 0.14) × 10 −20 cm 2 , (8.78 ± 0.54) × 10 −22 cm 2 for the multiply-charged products Ne q + ( q = 2–5), respectively. The corresponding threshold energies are measured to be (41.0 ± 0.5) eV, (105 ± 1) eV, (205 ± 5) eV and (345 ± 15) eV. Present data are compared with available experimental and theoretical results.