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A scanning electron microscope (SEM) is a type of electron microscope that produces images of a sample by scanning the surface with a focused beam of electrons. The electrons interact with atoms in the sample, producing various signals that contain information about the surface topography and composition. The electron beam is scanned in a raster scan…
History, Sample preparation & Gallery of SEM images
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sem electron image electrons sample beam specimen images used surface detector secondary microscopy materials using resolution samples 3d scanning method
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| wood | instance of | dry materials | 0.80 | text |
| bone | instance of | dry materials | 0.80 | text |
| feathers | instance of | dry materials | 0.80 | text |
| dried insects | instance of | dry materials | 0.80 | text |
| or shells | instance of | dry materials | 0.80 | text |
| ethanol or acetone | instance of | this is commonly achieved by replacement of water in the cells with organic solvents | 0.80 | text |
| and replacement of these solvents in turn with a transitional fluid such as liquid carbon dioxide by critical point drying | instance of | this is commonly achieved by replacement of water in the cells with organic solvents | 0.80 | text |
| epoxy resin or electrically conductive double-sided adhesive tape | instance of | liquid interface is present within the sample during drying.The dry specimen is usually mounted on a specimen stub using an adhesive | 0.80 | text |
| and sputter-coated with gold or gold/palladium alloy before examination in the microscope | instance of | liquid interface is present within the sample during drying.The dry specimen is usually mounted on a specimen stub using an adhesive | 0.80 | text |
| ice | instance of | is also applicable to the imaging of temperature-sensitive materials | 0.80 | text |
| fats.Freeze-fracturing | instance of | is also applicable to the imaging of temperature-sensitive materials | 0.80 | text |
| freeze-etch or freeze-and-break is a preparation method particularly useful for examining lipid membranes | instance of | is also applicable to the imaging of temperature-sensitive materials | 0.80 | text |
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