19 Replies to “Scanning Electron Microscope”

  1. not really, it’s mainly to avoid build up of charge on the sample. If charge built up then it would repel the electron beam and you’d lose the detail in the image.

  2. The coating is to make the sample conductive. Some samples are not, and the result might be that you build up a charge on it, where the electron beam hits, and you will burn a hole. Therefore a coating.

  3. One possible way is by placing the specimen in a vacuum chamber and boiling the gold, which condenses on the specimen. Here’s an excellent video demonstrating this: youtube.com/watch?v=7dF0QTzcuac

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