Electron-impact single and double ionization of W17 +

J Rausch (1) , A Becker (1) , K Spruck (1) , J Hellhund (1) , A Borovik (1) , K Huber (1) , S Schippers (1) , A Müller (1)

1 IAMP - Institut für Atom- und Molekülphysik

A crossed-beams setup was used to measure cross sections for electron-impact single and double ionization of W 17+ ions. Absolute data and high-resolution scan spectra were obtained at collision energies ranging from threshold up to 1000 eV. Comparison of the experimental results with theoretical calculations for direct ionization suggests substantial contributions of excitation-autoionization processes to electron-impact single ionization of W 17+.

Mots clés: Physical Sciences

J Rausch, A Becker, K Spruck, J Hellhund, A Borovik, et al.. Electron-impact single and double ionization of W17 +. Journal of Physics B: Atomic, Molecular and Optical Physics, 2011, 44 (16), pp.165202. ⟨10.1088/0953-4075/44/16/165202⟩. ⟨hal-00645375⟩