Stabilization of Ion-Temperature-Gradient–Driven Tokamak Modes by Magnetic-Field Gradient Reversal

1997 ◽  
Vol 78 (18) ◽  
pp. 3471-3474 ◽  
Author(s):  
M. Fivaz ◽  
T. Tran ◽  
K. Appert ◽  
J. Vaclavik ◽  
S. Parker
Keyword(s):  
Magnetic Field ◽  
Temperature Gradient ◽  
Field Gradient ◽  
Magnetic Field Gradient ◽  
Ion Temperature ◽  
Ion Temperature Gradient

Tripolar vortices in ion-temperature-gradient mode with non-Maxwellian electrons in an inhomogeneous magnetoplasma

2017 ◽  
Vol 95 (7) ◽  
pp. 650-654
Author(s):  
Anisa Qamar ◽  
Javed Iqbal ◽  
U. Zakir ◽  
Arshad M. Mirza
Keyword(s):  
Magnetic Field ◽  
Temperature Gradient ◽  
Low Frequency ◽  
Equilibrium Density ◽  
Ion Temperature ◽  
Ion Temperature Gradient ◽  
Field Gradients ◽  
Frequency Plasma ◽  
Magnetic Field Gradients ◽  
Kappa Distributed Electrons

We consider a low frequency plasma comprising of Kappa distributed electrons and Maxwellian ions embedded in an external magnetic field in toroidal ion-temperature-gradient driven modes. A set of nonlinear equations are derived in the presence of equilibrium density, temperature, and magnetic field gradients. In the nonlinear regime, solutions in the form of tripolar vortices are derived by using Braginskii’s transport equations. It has been observed that the scale lengths over which the nonlinear vortex structures form get modified in the presence of Kappa distributed electrons. In tokamak the present study is applicable where non-Maxwellian population has been observed in electron cyclotron heating experiments and resonant frequency heating.

Ion‐temperature‐gradient‐driven turbulence and transport in a sheared magnetic field

1991 ◽  
Vol 3 (3) ◽  
pp. 620-626 ◽  
Author(s):  
A. M. Dimits ◽  
J. F. Drake ◽  
P. N. Guzdar ◽  
A. B. Hassam
Keyword(s):  
Magnetic Field ◽  
Temperature Gradient ◽  
Ion Temperature ◽  
Ion Temperature Gradient
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