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SE3

SE3

Secondary electron(s) excited by the collision of backscattered electrons with the components (objective lens, detector, etc.) of the SEM instrument.
If the energy of the incident electrons is as high as a few 10 keV, SE3(s) can be undesirably generated. SE3 does not possess information on a specimen and behaves as the noise to degrade the contrast of the secondary electron image.

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