What is Secondary Electron Imaging?
Secondary electrons are low energy electrons emitted from very near the sample surface. This signal provides an image of the sample topography, and hence, external morphology. This can be applied not only to simple characterization of a sample material but also to a variety of other applications including component failure analysis or the determination of chemical stability of materials indicated by growth or dissolution features. The example at left shows some pollen at 1000X magnification..