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Ein modifiziertes Wiensches Filter als Elektronenmonochromator

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Zeitschrift für Physik

Abstract

A velocity selector of the Wien type (crossed uniform electric and magnetic fields) obtains the property of stigmatic focusing by replacing the uniform electric field by a field with cylindrical curvature. Focusing conditions, energy dispersion, and the apertural error are calculated. A monochromator of this type is constructed for electrons of 100 eV energy. With an exit aperture of 50 μ diameter an energy spread of 0,06 eV was measured.

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Authors and Affiliations

  1. Institut für Angewandte Physik der Universität Hamburg, Hamburg

    Werner Legler

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  1. Werner Legler
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Dem Leiter des Instituts für Angewandte Physik, Herrn Professor Dr. H.Raether, danke ich für die Anregung, dieses Thema zu bearbeiten, und für das ständige Interesse an dieser Arbeit.

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Legler, W. Ein modifiziertes Wiensches Filter als Elektronenmonochromator. Z. Physik 171, 424–435 (1963). https://doi.org/10.1007/BF01380660

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  • DOI: https://doi.org/10.1007/BF01380660

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