Abstract
IN some work here on the focusing of rotationally symmetrical electron beams in the energy-range 20–70 volts, we have come across cases of standing-wave patterns in the electron emission from the cathode which may be of interest to valve designers and others working on the properties of low-energy electron beams.
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References
Proc. Roy. Soc., A, 190, 376 (1947).
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CLARKE, W., JACOB, L. Standing Waves in Low-Energy Electron Beams. Nature 168, 1120–1121 (1951). https://doi.org/10.1038/1681120a0
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DOI: https://doi.org/10.1038/1681120a0
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