Collisions of Be, Fe, Mo and W atoms and ions with hydrogen isotopes: electron capture and electron loss cross sections

Abstract

This work is a continuation of an investigation of the collisional properties of heavy-ion plasma impurities and the elements used for the plasma facing components in fusion devices. Results on the charge-changing cross sections for W atoms and ions are published in (Tolstikhina et al 2012 J. Phys. B: At. Mol. Opt. Phys. 45 145201). Here we present the electron loss and electron capture cross sections for collisions of Be, Fe and Mo atoms and their ions with the hydrogen isotopes (H, D, T) calculated in the E = 10 eV/u–10 MeV/u energy range. The calculations are performed, accounting for the multiple-electron loss processes and the cross sections, which can contribute more than 50% to the total loss cross sections. The influence of the isotope effect (mass dependence) (Stolterfoht et al 2007 Phys. Rev. Lett. 99103201) on the capture cross sections is also studied in the frame of an adiabatic theory of transitions in slow collisions. New data on the partial multiple-electron loss cross sections for W and W+ are presented. Calculated cross sections are compared with the available experimental and theoretical data.