Critical Conditions for Drift, Drift-Alfven and Drift-Tearing Instabilities of Finite-β Plasma in Sheared Magnetic Field

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概要

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• Kinetic theory of low frequency instabilities of a current-carrying finite-7plasma in a sheared magnetic field is investigated. Drift mode, drift-Alfven modeand drift-tearing mode are identified both in collisionless and collisional regimesand each critical stability condition is obtained, We find a new electromagneticlocalized mode driven by the plasma current in a finite-/? plasma. Both the currentand finite-/j effects are required to excite this mode. It is also shown that, in theabsence of the plasma current, any electromagnetic localized mode which ispropagating in the direction of the electron diamagnetic drift is stable in thecollisionless limit of a finite ion temperature plasma. For the collisional mode,stability holds if ctc>co? (electron diamagnetic frequency) or a<0.

• 1980-03-15

著者

• Itoh Kimitaka

  Division Of Thermonuclear Fusion Research Japan Atomic Energy Research Institute:on Leave Of Absence

• INOUE Sanae

  Institute for Fusion Theory,Hiroshima University

• Inoue Sanae

  Institute For Fusion Theory Hiroshima University

• Itoh Kimitaka

  Division Of Thermonuclear Fusion Research Japan Atomic Energy Research Institute

• YOSHIKAWA Shoichi

  Plasma Physics Laboratory,Princeton University

• Yoshikawa Shoichi

  Plasma Physics Laboratory Princeton University

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