Return-current formation in the electron beam – plasma system
Using a 3-D electromagnetic particle-in-cell model an evolution of the electron distribution function in the beam-plasma system with the return current is computed. It was found that the resulting electron distribution function depends on the magnetic field assumed along the beam-propagation dir...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2009-07-01
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| Series: | Nonlinear Processes in Geophysics |
| Online Access: | http://www.nonlin-processes-geophys.net/16/525/2009/npg-16-525-2009.pdf |
| _version_ | 1811297157660016640 |
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| author | M. Bárta M. Karlický |
| author_facet | M. Bárta M. Karlický |
| author_sort | M. Bárta |
| collection | DOAJ |
| description | Using a 3-D electromagnetic particle-in-cell model an evolution of the electron distribution function in the beam-plasma system with the return current is computed. It was found that the resulting electron distribution function depends on the magnetic field assumed along the beam-propagation direction. While for small magnetic fields the electron distribution function becomes broad in the direction perpendicular to the beam propagation due to the Weibel (filamentation) instability and the return current is formed by a shifted bulk distribution, for stronger magnetic fields the distribution, especially on the return current side, is extended in the beam-propagation direction. To understand better the instabilities influencing the mentioned processes, the dispersion diagrams are computed and discussed. |
| first_indexed | 2024-04-13T05:59:54Z |
| format | Article |
| id | doaj.art-cd1290a0937a4591b6959f0b8b671529 |
| institution | Directory Open Access Journal |
| issn | 1023-5809 1607-7946 |
| language | English |
| last_indexed | 2024-04-13T05:59:54Z |
| publishDate | 2009-07-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Nonlinear Processes in Geophysics |
| spelling | doaj.art-cd1290a0937a4591b6959f0b8b6715292022-12-22T02:59:30ZengCopernicus PublicationsNonlinear Processes in Geophysics1023-58091607-79462009-07-01164525532Return-current formation in the electron beam – plasma systemM. BártaM. KarlickýUsing a 3-D electromagnetic particle-in-cell model an evolution of the electron distribution function in the beam-plasma system with the return current is computed. It was found that the resulting electron distribution function depends on the magnetic field assumed along the beam-propagation direction. While for small magnetic fields the electron distribution function becomes broad in the direction perpendicular to the beam propagation due to the Weibel (filamentation) instability and the return current is formed by a shifted bulk distribution, for stronger magnetic fields the distribution, especially on the return current side, is extended in the beam-propagation direction. To understand better the instabilities influencing the mentioned processes, the dispersion diagrams are computed and discussed.http://www.nonlin-processes-geophys.net/16/525/2009/npg-16-525-2009.pdf |
| spellingShingle | M. Bárta M. Karlický Return-current formation in the electron beam – plasma system Nonlinear Processes in Geophysics |
| title | Return-current formation in the electron beam – plasma system |
| title_full | Return-current formation in the electron beam – plasma system |
| title_fullStr | Return-current formation in the electron beam – plasma system |
| title_full_unstemmed | Return-current formation in the electron beam – plasma system |
| title_short | Return-current formation in the electron beam – plasma system |
| title_sort | return current formation in the electron beam ndash plasma system |
| url | http://www.nonlin-processes-geophys.net/16/525/2009/npg-16-525-2009.pdf |
| work_keys_str_mv | AT mbarta returncurrentformationintheelectronbeamndashplasmasystem AT mkarlicky returncurrentformationintheelectronbeamndashplasmasystem |