A new high-resolution electron-energy-loss spectrometer (EELS) based on dispersion compensation has been designed, built, and tested. A detailed analysis indicates that this system should yield two to three orders of magnitude more signal than conventional spectrometers operating at comparable energy resolution. Second-order imaging aberrations have been calculated and shown to be consistent with this expectation. A specific design is presented which will allow studies of the vibrations of transient species on a surface. Initial tests on the chemisorption of CO on Cu (100) indicate the applicability of this new technique.
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Kevan et al. (1984) studied this question.
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