Abstract
A PIECE of classical electronic physics is the study of one-dimensional space-charge-limited currents between infinite planes, co-axial cylinders and concentric spheres1–3. Recently, this has been extended to the case of relativistic electron speeds4. Examination of the validity of the extension has revealed that not only in the relativistic but also in the classical cases, such flows are—even in principle—impossible, and that certain restrictions on the size of the cathode are necessary for their approximate realization.
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MELTZER, B. Magnetic Constriction in Simple Diodes. Nature 181, 1332–1333 (1958). https://doi.org/10.1038/1811332a0
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DOI: https://doi.org/10.1038/1811332a0
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