Resonances at slow electron collisions with zinc atoms and ions

The optical excitation functions of four spectral lines corresponding to th e transitions from the 4(1)D(2), 5(3)S(1), 4(3)D(j), and 6(1)S(0) levels of atomic Zn were investigated with an electron spectrometer of a new constru ction. For the first time, elastic scattering of slow electrons from the Zn ions at an angle close to 180 degrees was studied. In the energy range und er investigation (0-7 eV), both the optical excitation functions of atomic spectral lines and the differential cross section of elastic scattering man ifested the resonant structure caused by the contribution of autoionization states of the atom. (C) 2001 MAIK "Nauka/Interperiodica".