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Calibration Overview
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SEM Low & Medium Magnification Resolution
Test Specimens




dendrites

Aluminum-Tungsten Dendrites

medium resolution test for Scanning Electron Microscopy

The various spacings created by the dendritic structure give the gap test. The topographical arrangement of dendrites leads to the gray level test. The specimen is non-magnetic, vacuum clean, has no adverse reaction to the electron probe and requires no surface coating. It is most useful for working in the probe size range of 25 to 75nm.
This standard is supplied unmounted with instructions and with a SEM micrograph.
Sample size is approximately 10mm dia. x 4mm high.

Prod # Description Unit Price Order / Quote
620 Aluminum-Tungsten Dendrites Test Standard each $234.50
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SEM Astigmatism Correction
and Resolution Determination

microscopy calibration standard
prickly gold

PELCO® Astigmatism Corrector

Clear, sharp, high contrast images easy to stigmate and use for checking resolution.

Sharp-edged gold particles supported on a 3mm diameter 1000 mesh copper TEM grid attached to any specimen mount of the group listed below.

This specimen is used to:

1. determine the presence of astigmatism and allow correction
2. determine instrument resolution.

See drawings to identify specimen mount and the correct ordering number. The specimen may also be prepared on a custom mount of your choice.

See information on mounts A-Q

See the #16179 PELCO® SEM Sample Stub Vacuum Desiccator

PELCO® Technical Notes, PELCO® Gold SEM Astigmatism Corrector, 640 (PDF File)


Prod # Description Unit Price Order / Quote
640 PELCO® Astigmatism Corrector, unmounted each $53.50
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640-A PELCO® Astigmatism Corrector, Mount A each 53.50
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640-B PELCO® Astigmatism Corrector, Mount B each 53.50
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640-C PELCO® Astigmatism Corrector, Mount C each 53.50
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640-D PELCO® Astigmatism Corrector, Mount D each 53.50
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640-E PELCO® Astigmatism Corrector, Mount E each 53.50
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640-F PELCO® Astigmatism Corrector, Mount F each 53.50
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640-G PELCO® Astigmatism Corrector, Mount G, You Supply Mount each 143.50
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640-K PELCO® Astigmatism Corrector, Mount K each 53.50
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640-L PELCO® Astigmatism Corrector, Mount L each 53.50
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640-M PELCO® Astigmatism Corrector, Mount M each 53.50
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640-O PELCO® Astigmatism Corrector, Mount O each 53.50
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640-P PELCO® Astigmatism Corrector, Mount P each 53.50
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640-Q PELCO® Astigmatism Corrector, Mount Q each 53.50
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640-R PELCO® Astigmatism Corrector, Mount R each 53.50
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