Electron Heating by Self-Interaction of Bernstein Waves
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When Bernstein waves (B waves) are excited in a magnetized plasma, the self-interaction of B waves by nonlinear Landau damping becomes a dominant mechanismfor the electron heating of bulk plasma. This heating occurs only for B waves with rel-atively small k, because the damping of the B wave itself becomes very small. Thisheating occurs in the relatively broad frequency range between co/co.zI.5 andco / co.z 1.7 of B waves. For B waves with la?-ge k, (k, R >0.15), the fast tail electronsare generated by the quasi-linear cyclotron damping of the B wave itself. Theefficiency of the generation of tail electrons is somewhat less than that for electronheating by self-interaction of B waves.nonlinear Landau damping, Bernstein wave, self-interaction, heating
- 社団法人日本物理学会の論文
- 1992-06-15
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