Universal resolution test specimen with a particle size range from approximately <5nm - 30um. This tin on carbon test specimen has a very wide size range of tin spheres which give high contrast when imaged in the SEM.
This tin on carbon test specimen has a very wide size range of tin spheres which give high contrast when imaged in the SEM.
The largest spheres can be used for basic column alignment at low magnification; intermediate sized spheres are useful for monitoring image shift when changing operating parameters or resolution checking at low kV; and the smallest spheres can be used for resolution checking and astigmatism correction at the very highest magnifications.
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