Abstract
An experimental study on the energy spectra of ions emitted from the surface of a polycrystalline Cu target under the bombardment by 2 keV O2+ molecular ions was carried out. Sputtered atomic ions Cu+ and O+ were prevailed among the positively charged secondary ions, and among the negative ions, in addition to sputtered ions Cu-, CuO2-, O-, and O2-, intense elastically and inelastically backscattered O- and O2+ ions were revealed.
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