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Scanning Electron Microscopy01:07

Scanning Electron Microscopy

5.3K
A scanning electron microscope (SEM) is used to study the surface features of a sample by using an electron beam that scans the sample surface in a two-dimensional manner. Typically, areas between ~1 centimeter to 5 micrometers in width can be imaged. SEM can be used to image bacteria, viruses, tissues as well as larger samples like insects. Conventional SEM gives a magnification ranging from 20X to 30,000X and spatial resolution of 50 to 100 nanometers.
Fundamental Principles
Accelerated...
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Electron Microscope Tomography and Single-particle Reconstruction01:07

Electron Microscope Tomography and Single-particle Reconstruction

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Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
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関連する実験動画

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Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis
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四次元スキャニング伝送電子顕微鏡のデータ分析による自動化された原子位置決定

Francisco Fernandez-Canizares1, Javier Rodriguez-Vazquez1, Rafael V Ferreira1

  • 1GFMC, Departamento de Física de Materiales, Universidad Complutense de Madrid, Madrid, 28040, Spain; Instituto Pluridisciplinar Universidad Complutense de Madrid, 28040, Spain.

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まとめ

No abstract available in PubMed .

キーワード:
4D-STEMについて収束ビームの電子 difraktionディープラーニング機械学習スキャニング伝送電子顕微鏡

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