Abstract
WE have found that a beam of electrons injected into a tube containing an inert gas will cause attenuation of a radio-frequency field traversing the tube, provided that the electrons have sufficient energy to ionize the gas. A device using this effect would assist the study of microwave absorption in gases. The effect has therefore been investigated with the object of producing an attenuator with electronic control.
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HAWKINS, P., COSTAIN, C. Amplitude Modulation of Centimetre Waves. Nature 164, 356 (1949). https://doi.org/10.1038/164356a0
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DOI: https://doi.org/10.1038/164356a0
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