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| Titel |
The instability of an electron beam with a finite radius in a boundless plasma |
| VerfasserIn |
G. V. Lizunov, A. S. Volokitin, D. B. Skidanov |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 14, no. 4 ; Nr. 14, no. 4, S.367-374 |
| Datensatznummer |
250012253
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| Publikation (Nr.) |
 copernicus.org/angeo-14-367-1996.pdf |
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| Zusammenfassung |
| Within the framework of a linear theory, the
instability of an electron beam with a finite radius in a cold magnetised
boundless plasma is considered. It is shown that a finite beam dimension
influences the generation of quasi-potential waves in two aspects: the
perpendicular wave number is quantised so that the frequencies of the waves are
subjected to strong selection; a new kind of instability appears due to wave
energy losses by emission into surrounding space. Growth rate dependence of wave
numbers and frequencies is investigated for typical parameters of experiments
with electron beams in space. |
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