Give+a+brief+overview+of+SEM

The Scanning Electron Microscope is a microscope that uses electrons to take an image of various objects. There are many advantages to using the SEM instead of a light microscope. “The SEM has a large depth of field, which allows a large amount of the sample to be in focus at one time. The SEM also produces images of high resolution, which means that closely spaced features can be examined at a high magnification.” Using SEM is really easy because we can find samples quick. Samples are needed to be conductive and dried. With higher magnification, larger depth of focus, and ease of sample observation makes the SEM one of the most crucial and nice instruments in research areas today. http://mse.iastate.edu/microscopy/whatsem.html