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Article
Reduction of radiation damage in an electron microscope with a superconducting lens system
OBSERVATION of biological specimens at high resolution by electron microscopy is limited by radiation damage. In general, structural details of non-periodical arrangements can only be identified for doses of r...
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Book Series
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Book
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Chapter
Proposed Superconducting 3-MV Microscope
A possible construction for a 3-MV microscope with most components of the superconducting variety and operated mainly in the fixed-beam mode is outlined in the literature (Dietrich et al., 1975). Passow (1976) ha...
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Chapter
Basic Principles of Electron Optics
The electron optical relations summarized in this chapter are essentially oriented toward electron microscopy. The course of the beam in a conventional transmission electron microscope is sketched in Figure 2....
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Chapter
Lens Design and Testing
Different types of superconducting rotationally symmetric lenses for which field distributions have been obtained are described in the literature. The axial field measurements were usually carried out with low...
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Chapter
Other Superconducting Elements for Electron Microscopy
The generator for high-voltage microscopes (V > 1MV), in general a dc machine, is the largest single element of the instrument and causes its immense height. In Toulouse the height of the instrument is about 20 m...
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Chapter
Historical Survey
The possibility of applying the phenomena of superconductivity to electron optical lenses was probably first proposed by Boersch in 1934 at the Berlin Laue colloquium, after the presentation of Meissner’s pape...
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Chapter
Superconducting Devices in Electron Microscopy
The improvements gained by superconducting devices in electron microscopy are due partly to the properties of the superconductors and partly to the low temperatures which must be maintained. However, the low t...
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Chapter
Systems with Superconducting Lenses
Superconducting lenses have not been much used yet as condensers, intermediate lenses, and projectors in conjunction with superconducting objective lenses. Projectors are used, as in conventional electron micr...
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Chapter
Supraleitung in der Nachrichtentechnik
Anwendungsmöglichkeiten der Supraleitung in der Elektronentechnik sind selbst für den Außenstehenden augenfällig. Man denkt z.B. an die Ausnützung der elektrischen Stromleitung ohne ohmsche Verluste, der ideal...