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A 200 kV electron microscope with Schottky field emitter and a helium-cooled superconducting objective lens

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Zemlin,  Friedrich
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Beckmann,  Erich
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Zemlin, F., Beckmann, E., & van der Mast, K. D. (1996). A 200 kV electron microscope with Schottky field emitter and a helium-cooled superconducting objective lens. Ultramicroscopy, 63(3-4), 227-238. doi:10.1016/0304-3991(96)00038-1.


Cite as: https://hdl.handle.net/21.11116/0000-000A-1C4E-1
Abstract
Electron microscopy of biological structural research has made significant advances. These advances were the stimulus to develop an electron microscope containing most of the desirable features and methods for high resolution cryo-electron microscopy. The new instrument is a modified commercial Philips CM 20 FEG electron microscope equipped with a helium-cooled cryoobjective from Siemens. This paper presents the essential features and research possibilities of this new microscope named “SOPHIE” (acronym for Superconducting Objective in a PHI-lips Electron microscope).