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| Content Provider | Springer Nature Link |
|---|---|
| Author | Kurkin, S. A. Korovski, A. A. Hramov, A. E. |
| Copyright Year | 2009 |
| Abstract | Results are presented from a numerical study of the effect of an external magnetic field on the conditions and mechanisms for the formation of a virtual cathode in a relativistic electron beam. Characteristic features of the nonlinear dynamics of an electron beam with a virtual cathode are considered when the external magnetic field is varied. Various mechanisms are investigated by which the virtual cathode oscillations become chaotic and their spectrum becomes a multifrequency spectrum, thereby complicating the dynamics of the vircator system. A general mechanism for chaotization of the oscillations of a virtual cathode in a vircator system is revealed: the electron structures that form in an electron beam interact by means of a common space charge field to give rise to additional internal feedback. That the oscillations of a virtual cathode change from the chaotic to the periodic regime is due to the suppression of the mechanism for forming secondary electron structures. |
| Starting Page | 628 |
| Ending Page | 642 |
| Page Count | 15 |
| File Format | |
| ISSN | 1063780X |
| Journal | Plasma Physics Reports |
| Volume Number | 35 |
| Issue Number | 8 |
| e-ISSN | 15626938 |
| Language | English |
| Publisher | SP MAIK Nauka/Interperiodica |
| Publisher Date | 2009-09-08 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Waves, oscillations, and instabilities in plasmas and intense beams Atomic, Molecular, Optical and Plasma Physics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics |
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