FESEM
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 pattern, and the position of the beam is combined with the intensity of the detected signal to produce an image. In the most common SEM mode, secondary electrons emitted by atoms excited by the electron beam are detected using a secondary electron detector (Everhart–Thornley detector). The number of secondary electrons that can be detected, and thus the signal intensity, depends, among other things, on specimen topography. Some SEMs can achieve resolutions better than 1 nanometer. Specimens are observed in high vacuum in a conventional SEM, or in low vacuum or wet conditions in a variable pressure or environmental SEM, and at ...
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Misc Pollen
Misc or MISC may refer to: * Misc, written abbreviation for miscellaneous, often used in programs * Misc (title), a gender neutral title * MISC Berhad, or Malaysia International Shipping Corporation * Minimal instruction set computer, a processor architecture * Moi International Sports Centre, in Kasarani, Kenya * Multisystem inflammatory syndrome in children, a post-infectious disease associated with COVID-19 * Malabar Independent Syrian Church The Malabar Independent Syrian Church (MISC), also known as the Thozhiyur Church, is a Christian church centred in Kerala, India. It is one of the churches of the Saint Thomas Christian community, which traces its origins to the evangelical ac ... See also * * * * Miscellaneous {{disambiguation ...
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