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- Title
PHYSICAL NATURE OF “ANOMALOUS” ELECTRONS IN HIGH-CURRENT VACUUM DIODES.
- Authors
Kozhevnikov, Vasily Y.; Kozyrev, Andrey V.
- Abstract
Introduction/purpose: A fundamental theoretical explanation is given for the fact that in subnanosecond vacuum diodes there exists a group of electrons with kinetic energies much higher than the applied voltage (multiplied by the value of the elementary charge) qUmax. Methods: A mathematical method is used based on the numerical solution of the Vlasov-Poisson differential equations system for one-dimensional vacuum diodes of various designs. Results: It is shown in detail that the so-called "anomalous" electrons appear in the transient time domain characterizing the processes of establishing current flow in vacuum diodes. Conclusion: It has been convincingly shown that the presence of “anomalous” electrons is not associated with either the diode design or the presence of additional current carriers. In vacuum diodes with a subnanosecond leading edge of the voltage pulse, the excess of energy over qUmax can be over 20%.
- Subjects
NUMERICAL solutions to differential equations; DIODES; ELECTRON kinetic energy; ELECTRONS
- Publication
Military Technical Courier / Vojnotehnicki Glasnik, 2021, Vol 69, Issue 2, p391
- ISSN
0042-8469
- Publication type
Article
- DOI
10.5937/vojtehg69-30116