Excitation of Ne III by electron impact

Excitation cross sections as a result of electron impact were measured for thirty-three Ne III lines in the spectral region of 260--690 nm. The wavelengths are given for twenty-two unidentified lines together with the threshold energies, the energy positions for the maxima of the excitation functions, and the magnitudes of the cross sections. The transition probabilities A/sub k i/ were calculated for five lines and the excitation cross sections for five Ne III levels. The contribution from cascade population was included for one level.