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Summary
The One-Angstrom Microscope (OÅM) is a mid-voltage transmission electron microscope (TEM) capable of producing images with sub-angstrom resolution. The basic instrument is a modified Philips CM300FEG/UT, a TEM with a field-emission electron source and an ultra-twin objective lens with low spherical aberration (Cs = 0.60 mm) and a point-to-point resolution of 1.7Å. Special, highly stable power supplies for the objective lens and for high-voltage power produce an information limit of 0.8Å. A 2048x2048-pixel charge-coupled device (CCD) camera digitally records images up to a maximum magnification of 38Mx. The microscope can operate at an acceleration voltage of either 300kV or 150 kV and can produce aberration-corrected exit wave images with 0.8Å resolution. The OÅM can operate in any of the following modes:
- Focal series restoration from lattice images, using focal-series reconstruction
- Electron holography
- Annular dark field TEM imaging
- Energy filtered imaging and spectroscopy
- Electron tomography
Copyright status
This image is public domain because it was first published by th Lawrence Berkeley National Laboratory
Source
http://ncem.lbl.gov/frames/oam.htm
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| Data e hora | Miniatura | Dimensões | Utilizador | Comentário |
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| atual | 17h49min de 10 de julho de 2008 |  | 481 × 612 (196 kB) | Ashcraft | The One-Angstrom Microscope (OÅM) is a mid-voltage transmission electron microscope (TEM) capable of producing images with sub-angstrom resolution. The basic instrument is a modified Philips CM300FEG/UT, a TEM with a field-emission electron source and an |
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