The photo on the left shows the sample chamber located at the base of the column. The second photo shows the lens and detectors located inside the sample chamber.
Objective Lens
The lens that focuses the beam of electrons towards the sample is in the center of the
picture. The parts off to the right of the sample are different detectors. One is for
detecting the secondary electrons and the other is for detecting the backscattered electrons. The
operator has the power to choose and switch detectors for use on each sample. Using the
secondary
electron detector produces a clear and focused topographical
image of the sample. The backscatter electron
detector produces an image that is useful when determining the make-up of
the sample. Each element in the sample appears as a different shade, from almost white to black.
Stage
A prepared sample is mounted on a specimen stub and placed on the stage.
