On the physical nature of "anomalous" high energy electrons in vacuum diode
The transient process of establishing an electron current in a vacuum diode is theoretically investigated, in which the kinetic energies of electrons can exceed the amplitude value of the applied voltage (multiplied by the elementary charge). It is shown theoretically that when a high voltage pulse with a short leading edge is applied to a planar vacuum diode, the first peak of relaxation current oscillations is provided by an electron beam of "anomalously" high energies. It is noted that the degree of "abnormality" electron beam energies significantly depends on the density of the emission current from the cathode, and in some cases may exceed the hypothetical voltage applied to the non-many times.
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Keywords
electron beam, planar vacuum diode, Child-Langmuir law, virtual cathodeAuthors
| Name | Organization | |
| Kozhevnikov V.Y. | Institute of High Current Electronics SB RAS | vasily.y.kozhevnikov@ieee.org |
| Kozyrev A.V. | Institute of High Current Electronics SB RAS | kozyrev@to.hcei.tsc.ru |
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