Abstract
Kownacki and Ratcliffe1 have previously described an experimental method of investigating electron inertia effects in thermionic vacuum tubes. By replacing the electrons in a triode by positive ions of cæsium, of mass 25 × 104 times greater, they were able to slow down the effective transit times involved by a factor of about 500. In this way they demonstrated the occurrence of rectification effects, dependent upon a resonant transit time, at a wavelength of about 500 metres.
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References
NATURE, 141, 1009 (1938).
Scheibe, Ann. Phys., 73, 70 (1924).
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ELLIOTT, W., RATCLIFFE, J. Barkhausen-Kurz Oscillations with Positive Ions. Nature 145, 265–266 (1940). https://doi.org/10.1038/145265a0
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DOI: https://doi.org/10.1038/145265a0
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