Electron energy-loss study of the 2s2p63s and 2s2p63p configurations of neon

Abstract
The electron impact excitation of the configurations 2s2p63s and 2s2p63p in neon has been observed in the energy-loss mode over a range of impact energies and scattering angles. The spectra of the 3p configuration have been analysed to obtained the variation with angle and energy of the line shape parameters and intensities for the 1P and 3P terms. Spectra of the 3s configuration show predominantly the 1S term but a detailed analysis has enabled a value to be obtained for the energy of the 3S term which is in disagreement with previous results. The variation of line shape and intensity for the 1S term is given. A very broad feature at an excitation energy of about 44 eV has been observed for the first time and its behaviour is discussed.