Influence of Preparation on Image Quality
Back-scatter electron images of as-polished 2205 duplex stainless steel shows the improvement in image quality by using the best preparation methods.
Image Contrast Modes
- EmissiveMode – low-energy secondary electrons (come from the surface to ~10 nm depth)
- ReflectiveMode – higher-energy backscattered electrons (come from a much greater depth)
- AbsorptiveMode – detect signal flowing through the specimen to ground (inverse of BSE image)
- X-RayMode – characteristic x-rays generated by the incident beamto show the distribution of elements at, and slightly below, the surface.