We report the first results of a method for determining the inelastic attenuation length of low-energy electrons in the surface region of a solid from the yield of characteristic Auger electrons excited by proton bombardment. Samples of evaporated beryllium were bombarded by 160-keV protons, and the attenuation length of 100-eV electrons in Be was determined to be 6.1 Å.
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Needham et al. (1977) studied this question.
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