ELECTRON-IMPACT EXCITATION OF THE Cd+ ION RESONANCE LINES A.N.Gomonai, A.I.Imre, V.S.Vukstich, A.N.Nemeth Institute of Electron Physics, 21 Universitetska str., Uzhgorod 294016, Ukraine A detailed study of the electron-impact excitation of the Cd+ ion resonance lines from the threshold up to 120 eV has been carried out. The distinct resonance structure below and above the ion ionization potential has been observed in the energy dependences of both line-emission cross-sections.