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Effect of Guiding Magnetic Field on Weibel Instability |
| LI Ji-Wei1;PEI Wen-Bing2 |
| 1Graduate School, China Academy of Engineering Physics, PO Box 2101, Beijing 100088
2Institute of Applied Physics and Computational Mathematics, PO Box 8009, Beijing 100088 |
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| Cite this article: |
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LI Ji-Wei, PEI Wen-Bing 2005 Chin. Phys. Lett. 22 1976-1979 |
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Abstract We derive a linear dispersion relation in the presence of a constant uniform guiding magnetic field parallel to the beam velocity direction, which shows a strong background magnetic field suppresses or even stabilizes the Weibel instability produced by two counter streams in electron-ion plasmas. The simulation results are in good agreement with the analytical ones. Also observed in the simulations are the suppression of electrostatic field, a higher level of saturation of self-generated magnetic field, and the apparent difference in phase space compared with those in the absence of guiding magnetic field.
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| Keywords:
52.40.Nk
52.65.Rr
52.35.Mw
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Published: 01 August 2005
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| PACS: |
52.40.Nk
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52.65.Rr
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(Particle-in-cell method)
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52.35.Mw
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(Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.))
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