Effect of electron diffusion on m=2 tearing mode

Author

Prasad, P. V Siva Rama

Author_Institution

Dept. of Phys., Indian Inst. of Technol., New Delhi, India

Volume

25

Issue

2

fYear

1997

fDate

4/1/1997 12:00:00 AM

Firstpage

342

Lastpage

345

Abstract

The effect of electron diffusion due to background drift wave turbulence on the stability of the m=2 tearing mode, in the collisionless and the semicollisional regimes, has been studied. The coherent direct interaction approximation has been applied to the drift-kinetic equation to obtain the renormalized tearing mode equation in the turbulent background. It has been found from the present calculations that, in the collisionless regime, the electron diffusion does not affect the stability of the mode significantly, but in the semicollisional regime, it significantly stabilizes the mode

Keywords

plasma drift waves; plasma kinetic theory; plasma transport processes; plasma turbulence; tearing instability; background drift wave turbulence; coherent direct interaction approximation; collisionless regime; drift-kinetic equation; electron diffusion; m=2 tearing mode; renormalized tearing mode equation; semicollisional regime; Distribution functions; Electrons; Frequency; Magnetic fields; Maxwell equations; Nonlinear equations; Plasma temperature; Plasma waves; Stability; Temperature distribution;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.602509

Filename

602509