THE NEON AUGER SPECTRUM PRODUCED BY ION-BOMBARDMENT OF ALUMINUM AND SILICON SURFACES

Measurements are reported of the Auger (autoionization) spectrum of Ne produced by bombarding Al and Si surfaces with Ne+ ions with energies in the range 400 eV to 5 keV. The shift in the Ne peak energies with incident ion energy is shown to follow a very simple Doppler model. The data are found to contain many small Auger peaks in addition to the two characteristic peaks recorded by previous workers. This new structure is shown to be consistent with ps-phase data and with measurements of the autoionizing states in Ne I.