Superconducting Lens for EMs
- Practical Electron Microscopy and Database -
- An Online Book -  


This book (Practical Electron Microscopy and Database) is a reference for TEM and SEM students, operators, engineers, technicians, managers, and researchers. You can click How to Cite This Book to cite this book. Please let Dr. Liao know once you have cited this book so that the brief information of your publication can appear on the “Times Cited” page. This appearance can also help advertise your publication.



Superconducting magnets is not commonly used in magnetic lenses, e.g. in EM (electron microscope) systems, even though they can provide a high magnetic field. The reason is that the superconducting coils can not generate a narrow (highly confined) field distribution. Recently, superconducting shield lenses using the Meissner effect have been used to make the narrow magnetic field [1]. However, the technology for the production of such lenses was very difficult and inappropriate for commercial production.


[1] Lefranc, G., Knapek, E., and Dietrich, I. 1982. Superconducting lens design, Ultramicroscopy, 10(1/2), 111–123.



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