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Electron Temperature Gradient Driven Instability in High Beta Plasmas of a Sheared Slab |
| LIU Feng1;DONG Jia-Qi1;GAO Zhe2 |
| 1Southwestern Institute of Physics, PO Box 432, Chengdu 610041
2Department of Engineering Physics, Tsinghua University, Beijing 100084 |
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| Cite this article: |
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LIU Feng, DONG Jia-Qi, GAO Zhe 2005 Chin. Phys. Lett. 22 1170-1173 |
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Abstract Neglecting the magnetic gradient drift effects, we derive a simplified version of the integral eigenvalue equations for perturbations of electrostatic potential, and the perpendicular and parallel components of magnetic vector potential in plasmas of sheared slab geometry. The electron temperature gradient (ETG) instability in high beta plasmas is studied with the equations and the corresponding computer code. The preliminary results indicate that the coupling to perturbation of the perpendicular component of the magnetic vector potential has strong destabilization effects on ETG instabilities in contrast to the stabilization effects from the coupling to that of the parallel component when the magnetic gradient drift is not taken into account.
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| Keywords:
52.25.Fi
52.35.Qz
52.35.Ra
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Published: 01 May 2005
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| PACS: |
52.25.Fi
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(Transport properties)
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52.35.Qz
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(Microinstabilities (ion-acoustic, two-stream, loss-cone, beam-plasma, drift, ion- or electron-cyclotron, etc.))
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52.35.Ra
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(Plasma turbulence)
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