Abstract
The magnetically collimated photoelectron spectromicroscope (PESM) was initially developed with the He I light source1,2. Although one of us3 has previously mentioned the successful use of other resonance lines, of a soft X-ray source and of metastable atoms as alternative ionizing sources, at that time no electron energy analysis had been performed using the X-ray source to decide in what proportion primary photoelectrons, Auger electrons and inelastically-scattered electrons contributed to the observed images. We now have this information and can compare the performance of these different sources, particularly in the direction of chemical analysis across a complex object. We also report for the first time energy-selected imaging using a fast-atom bombardment source.
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References
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Plummer, I. R., Porter, H. Q. & Turner, D. W. J. molec. Struct. 79, 145–162 (1982).
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Plummer, I., Porter, H., Turner, D. et al. Soft X rays and fast atoms as image generators in photoelectron microscopy. Nature 303, 599–601 (1983). https://doi.org/10.1038/303599a0
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DOI: https://doi.org/10.1038/303599a0
