Buy SEM Supplies Online - Apertures, Tapes, Paints & Tabs

45° Mirror aperture. Made of molybdenum or platinum. 0.236" x 0.004" thick 800 µm Aperture Diameter Other sizes and materials available on request. Learn More

Aperture for beam regulation. Made of molybdenum or platinum. 0.470" x 0.004" thick Other sizes and materials available on request. Learn More

Disc size - 2 mm x 0.50 mm Other holes sizes available

Click Here for self cleaning apertures of this type

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Self-Cleaning Apertures - Philips Type - Gold Foil - 3mm x 0.25mm Learn More

Camscan, ISI, Topcon Disc Apertures Disc size - 4 mm x 0.165 mm Other hole sizes available. Please contact us with your request Learn More

Disc size - 6 mm x 0.24 mm Need a hole size not shown above? We manufacture any hole size you need, just call or e-mail your requirements and we can quote you. Learn More

A specimen of 200 mesh gold screening is firmly affixed to an SEM specimen mount. This provides a quick method of determining image quality. Good surface detail discernible at reasonably high magnification. Will not oxidize.

Please state specimen mount required.

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Replica specifically made for SEM use is taken from a ruled diffraction grating with two sets of lines ruled at right angles to each other. There are 54,864 lines per inch in both directions. A 50 mesh screen is placed over entire grating for strength. Useful for magnification determination, detection and measurement of lens distortion, and the determination of the degree of fore-shortening in an image, as a function of specimen tilt. Measurement chart and instructions included.

Please specify the type of specimen mount required.

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Replica taken from a ruled diffraction grating. Useful for magnification of 3000x to 30,000x. A 50 mesh screen is placed over entire grating for strength. Measurement chart and instructions included.

Please specify the type of specimen mount required.

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