Abstract
There exists a quantitative connection between penetration depth of primary electrons, the maximum escape depth of secondary electrons and the position of the maximum of the yield curve if one assumes: (1) the maximum of the yield curve is determined by an energyE maxp of the primary electrons where the maximum penetration depth of primary electrons equals the maximum escape depth of the secondary electrons; and (2) the maximum escape depth of secondary electrons is given by 10 atomic layers for all metals investigated as it has been found earlier by Mayer and Hölzl for potassium.
These assumptions are confirmed experimentally by measurements of yield curves and energy distributions at defined conditions and by variation of several parameters as temperature, contamination of the surface, surface roughness, evaporation conditions, and angle of incidence of the primary electrons.
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Herrn Prof. Dr. H. Jahrreiß möchte ich für seine stetige Unterstützung danken, den Herren Dr. W. Schlabitz und Dipl.-Phys. W. Richter vom II. Physikalischen Institut der Universität zu Köln für die überlassung von flüssigem Helium.
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Buchholz, I. Zur Lage des Maximums der Ausbeutekurve bei der Sekundärelektronenemission. Z. Physik 227, 440–452 (1969). https://doi.org/10.1007/BF01394891
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DOI: https://doi.org/10.1007/BF01394891