scanning electron microscopy

scanning electron microscopy
Technique of electron microscopy in which the specimen is coated with heavy metal, and then scanned by an electron beam. The image is built up on a monitor screen (in the same way as the raster builds a conventional television image). The resolution is not so great as with transmission electron microscopy, but preparation is easier (often by fixation followed by critical point drying), the depth of focus is relatively enormous, the surface of a specimen can be seen (though not the interior unless the specimen is cracked open), and the image is aesthetically pleasing.

Dictionary of molecular biology. 2004.

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  • scanning electron microscopy — scanning electron microscopy. См. сканирующая электронная микроскопия. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Scanning Electron Microscopy — Microscopie électronique à balayage Pour les articles homonymes, voir MEB, SEM et Microscope. Microscope électronique à balayage JEOL JSM 6340F …   Wikipédia en Français

  • scanning electron microscopy — noun microscopy using a scanning electron microscope …   Wiktionary

  • scanning electron microscopy — noun see scanning electron microscope …   New Collegiate Dictionary

  • scanning electron microscopy — noun see scanning electron microscope …   Useful english dictionary

  • scanning electron microscope — n an electron microscope in which a beam of focused electrons moves across the object with the secondary electrons produced by the object and the electrons scattered by the object being collected to form a three dimensional image on a cathode ray …   Medical dictionary

  • scanning electron micrograph — n a micrograph made by scanning electron microscopy …   Medical dictionary

  • Scanning voltage microscopy — (SVM) sometimes also called nanopotentiometry is a scientific experimental technique based on atomic force microscopy. A conductive probe, usually only a few nanometers wide at the tip, is placed in full contact with an operational electronic or… …   Wikipedia

  • Scanning gate microscopy — (SGM) is a scanning probe microscopy technique with an electrically conductive tip used as a movable gate that couples capacitively to the sample and probes electrical transport on the nanometer scale. Typical samples are mesoscopic devices,… …   Wikipedia

  • Scanning electron microscope — These pollen grains taken on an SEM show the characteristic depth of field of SEM micrographs …   Wikipedia

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