scholarly journals Effect of poloidal density asymmetries on shear flows and radial electric field at the plasma edge

2018 ◽  
Vol 25 (5) ◽  
pp. 050702
Author(s):  
A. Y. Aydemir
Keyword(s):  
Electric Field ◽  
Shear Flows ◽  
Radial Electric Field ◽  
Plasma Edge

scholarly journals Investigation of turbulence rotation and radial electric field in the island divertor and plasma edge at W7-X

2019 ◽  
Vol 61 (5) ◽  
pp. 054003 ◽  
Author(s):  
A Krämer-Flecken ◽  
X Han ◽  
T Windisch ◽  
J Cosfeld ◽  
P Drews ◽  
...  
Keyword(s):  
Electric Field ◽  
Radial Electric Field ◽  
Plasma Edge

On the Origin of Steep and Localized Radial Electric Field in the Transport Barrier at Plasma Edge

2016 ◽  
Vol 56 (6-8) ◽  
pp. 522-527 ◽  
Author(s):  
K. Itoh ◽  
S.-I. Itoh ◽  
T. Kobayashi ◽  
K. Kamiya ◽  
T. Ido ◽  
...  
Keyword(s):  
Electric Field ◽  
Radial Electric Field ◽  
Plasma Edge ◽  
Transport Barrier

Rotation and radial electric field in the plasma edge with resonant magnetic perturbation at TEXTOR

2011 ◽  
Vol 51 (6) ◽  
pp. 063030 ◽  
Author(s):  
J.W. Coenen ◽  
O. Schmitz ◽  
B. Unterberg ◽  
M. Clever ◽  
M.A. Jakubowski ◽  
...  
Keyword(s):  
Electric Field ◽  
Radial Electric Field ◽  
Plasma Edge ◽  
Magnetic Perturbation

The effect of limiter biasing on the plasma edge rotation and MHD activities

2014 ◽  
Vol 32 ◽  
pp. 1460332
Author(s):  
A. Lahazi ◽  
P. Khorshid ◽  
M. Ghoranneviss
Keyword(s):  
Electric Field ◽  
Oscillation Amplitude ◽  
Sharp Decrease ◽  
Rotation Frequency ◽  
Radial Electric Field ◽  
Dominant Mode ◽  
Floating Potential ◽  
Plasma Edge ◽  
Magnetic Island ◽  
Toroidal Rotation

Plasma edge rotations and magnetohydrodynamic behaviors have been studied during radial electric field variations in IR-T1 tokamak. An external positive limiter bias has been used as an external radial electric field. The profiles of radial electric field, floating potential, poloidal and toroidal rotation velocities and MHD activities have been studied during positive limiter bias. The poloidal and toroidal velocities reduced when the bias was applied and their fluctuations on the plasma edge became smoother furthermore. A significant excitation in dominant mode (4, 1) oscillation amplitude and a sharp decrease in magnetic island rotation frequency have been seen.

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