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HIGH BETA EFFECTS ON THE FLUTE LOWER HYBRID DRIFT INSTABILITY

WANG DE-ZHEN GUO SHI-CHONG CAI SHI-DONG

HIGH BETA EFFECTS ON THE FLUTE LOWER HYBRID DRIFT INSTABILITY

WANG DE-ZHEN, GUO SHI-CHONG, CAI SHI-DONG
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  • Received Date:  02 August 1988
  • Published Online:  17 June 2005

HIGH BETA EFFECTS ON THE FLUTE LOWER HYBRID DRIFT INSTABILITY

  • 1. (1)大连理工大学物理系,大连,116024; (2)中国科学院物理研究所,北京,100080,中国高等科学技术中心(世界实验室)

Abstract: The high β flute lower hybrid drift (LHD) instability is studied in detail. The dispersion relation governing LHD mode with density, electron temperature inhomo-geneities and magnetic drift resonance is derived via gyrokinetic equations. It is found that when ▽Te//▽n the magnetic drift resonance related to ▽Te, enhances the instability and when ▽Te//▽n the resonance reduces the instability. In both cases, the finite βprovides a stability effects and shifts the largest growth rate point to the longer wave length. The analytical and numerical results are in good agreement. Electron temperature anisotropy gives no contribution to LHD mode.

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