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Ein hochempfindlicher Gegenfeld-Energieanalysator für Elektronen

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Zeitschrift für Physik

Abstract

A device of high sensitivity for the investigation of as well the angular as the energy distribution of an electron diffraction pattern is described. Consisting of an energy analyzer of the retarding field type in connection with scintillator and photomultiplier the device allowed to measure a minimum current of 10−17 A. This limit of detectability was only determined by the noise of the initial electron beam and a signal to noise ratio of 5. The energy resolution of the device was only limited by the thermal spread of the beam. By means of a deflection condensor the diffraction pattern was shifted over the diaphragm of the analyzer.

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Authors and Affiliations

  1. I. Physikalischen Institut der Technischen Universität Berlin, Deutschland

    H. Boersch & H. Miessner

Authors
  1. H. Boersch
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  2. H. Miessner
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Diese Arbeit wurde durch ein Stipendium aus ERP-Mitteln unterstützt. Herrn Dr. Ing. W.Raith danken wir für anregende Diskussionen.

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Boersch, H., Miessner, H. Ein hochempfindlicher Gegenfeld-Energieanalysator für Elektronen. Z. Physik 168, 298–304 (1962). https://doi.org/10.1007/BF01384322

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  • DOI: https://doi.org/10.1007/BF01384322

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