Experimental and theoretical Auger and autoionization spectra for electron impact on laser-excited Na atoms

An experimental method is described to obtain electron spectra with good resolution and high intensity following L-shell excitation or ionization of laser-excited Na atoms. We report on experimental and theoretical electron spectra in the energy range of 25 - 33 eV for laser excitation to , , and and for 1.5 keV electron impact. Due to the good agreement in line positions and intensities essentially all lines can be assigned. Furthermore, experimental relative cross sections for states excited from , and are determined and compared with theoretical values.