The instability of an electron beam with a finite radius in a boundless plasma
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 quantise...
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Copernicus Publications
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| Series: | Annales Geophysicae |
| Online Access: | http://www.ann-geophys.net/14/367/1996/angeo-14-367-1996.html |
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doaj-6aba11c967a54f068f3b815bd94fca512020-11-24T21:57:37ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-0576144367374The instability of an electron beam with a finite radius in a boundless plasmaG. V. LizunovA. S. VolokitinD. B. SkidanovWithin 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. http://www.ann-geophys.net/14/367/1996/angeo-14-367-1996.html |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
G. V. Lizunov A. S. Volokitin D. B. Skidanov |
| spellingShingle |
G. V. Lizunov A. S. Volokitin D. B. Skidanov The instability of an electron beam with a finite radius in a boundless plasma Annales Geophysicae |
| author_facet |
G. V. Lizunov A. S. Volokitin D. B. Skidanov |
| author_sort |
G. V. Lizunov |
| title |
The instability of an electron beam with a finite radius in a boundless plasma |
| title_short |
The instability of an electron beam with a finite radius in a boundless plasma |
| title_full |
The instability of an electron beam with a finite radius in a boundless plasma |
| title_fullStr |
The instability of an electron beam with a finite radius in a boundless plasma |
| title_full_unstemmed |
The instability of an electron beam with a finite radius in a boundless plasma |
| title_sort |
instability of an electron beam with a finite radius in a boundless plasma |
| publisher |
Copernicus Publications |
| series |
Annales Geophysicae |
| issn |
0992-7689 1432-0576 |
| description |
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. |
| url |
http://www.ann-geophys.net/14/367/1996/angeo-14-367-1996.html |
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