成像系统和电子束系统均内置在真空柱中。真空柱底端即为右图所示的密封室，用于放置样品。
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Scanning Electron Microscope (SEM) can be a sort of electron microscope that scans surfaces of microorganisms that makes use of a beam of electrons shifting at very low Strength to target and scan specimens.
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电子经过一系列电磁透镜成束后，打到样品上与样品相互作用，会产生次级电子、背散射电子、俄歇电子以及X射线等一系列信号。所以需要不同的探测器譬如次级电子探测器、X射线能谱分析仪等来区分这些信号以获得所需要的信息。虽然X射线信号不能用于成像，但习惯上，仍然将X射线分析系统划分到成像系统中。
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The specimen won't will need Unique cure for visualization underneath the SEM, even air-dried samples is usually examined right.
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Therefore lifted surfaces will look brighter on the display though frustrated surfaces seem darker.
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