Using the Anderson–Muda–Newns approach, the neutralization rate and the ion survival probability have been calculated for the large angle scattering of low-energy He+ ions by Al and by Al2O3. The two-band model of the electronic energy spectra is applied for the case of alumina. The electron promotion has been shown to play an important role in the processes of the He+ ions scattering by aluminum and alumina. The experimentally observed absence of the matrix effect is discussed on the basis of the obtained results.
|Number of pages||8|
|Journal||Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms|
|Publication status||Published - 1998|