Electron Emission Systems
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Monochromators require feed beams with defined aperture angles and a low energy spread. After presenting some basic concepts of thermionic emission we describe the technical aspects of trajectory calculations in the presence of space charge. Emission systems with differently shaped lenses are studied and their performances are compared.
KeywordsSpace Charge Emission Current Entrance Slit Lens System Virtual Cathode
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- 6.3K.R. Spangenberg: Vacuum Tubes (McGraw-Hill, New York 1948)Google Scholar
- 6.4W. Knauer: Optik 54, 211 (1979)Google Scholar
- 6.5A.B. El-Karen, J.C.J. El-Kareh: Electron Beams, Lenses and Optics (Academic, New York 1970)Google Scholar
- 6.6P. Grivet: Electron Optics (Pergamon, Oxford 1972)Google Scholar