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单词 Electron lens
释义

Electron lens

英语百科

Transmission electron microscopy

A TEM image of the polio virus. The polio virus is 30 nm in size.[1]
The first practical TEM, originally installed at IG Farben-Werke and now on display at the Deutsches Museum in Munich, Germany
Layout of optical components in a basic TEM
Single crystal LaB6 filament

Transmission electron microscopy (TEM) is a microscopy technique in which a beam of electrons is transmitted through an ultra-thin specimen, interacting with the specimen as it passes through it. An image is formed from the interaction of the electrons transmitted through the specimen; the image is magnified and focused onto an imaging device, such as a fluorescent screen, on a layer of photographic film, or to be detected by a sensor such as a CCD camera.

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更新时间:2025/6/20 20:10:22