Comment on determination of electron temperature from Langmuir probe data in tokamak edge plasma

1990 ◽  
Vol 40 (6) ◽  
pp. 678-685 ◽  
Author(s):  
J. Dvořáček ◽  
M. Tichý ◽  
L. Kryška ◽  
J. Stöckel ◽  
F. Žáček ◽  
...  
Keyword(s):  
Electron Temperature ◽  
Langmuir Probe ◽  
Edge Plasma ◽  
Tokamak Edge

Langmuir Probe Evaluation of the Plasma Potential in Tokamak Edge Plasma for Non-Maxwellian EEDF

2014 ◽  
Vol 54 (3) ◽  
pp. 267-272 ◽  
Author(s):  
Tsv. K. Popov ◽  
M. Dimitrova ◽  
P. Ivanova ◽  
E. Hasan ◽  
J. Horáček ◽  
...  
Keyword(s):  
Langmuir Probe ◽  
Plasma Potential ◽  
Edge Plasma ◽  
Tokamak Edge

scholarly journals Tokamak Edge Plasma Turbulence Interaction with Magnetic X-Point in 3D Global Simulations

Fluids ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 50 ◽  
Author(s):  
Davide Galassi ◽  
Guido Ciraolo ◽  
Patrick Tamain ◽  
Hugo Bufferand ◽  
Philippe Ghendrih ◽  
...  
Keyword(s):  
Turbulent Transport ◽  
Edge Plasma ◽  
Turbulent Structures ◽  
Magnetic Shear ◽  
Transport Barrier ◽  
Fluid Turbulence ◽  
Transport Barriers ◽  
Tokamak Edge ◽  
The Impact

Turbulence in the edge plasma of a tokamak is a key actor in the determination of the confinement properties. The divertor configuration seems to be beneficial for confinement, suggesting an effect on turbulence of the particular magnetic geometry introduced by the X-point. Simulations with the 3D fluid turbulence code TOKAM3X are performed here to evaluate the impact of a diverted configuration on turbulence in the edge plasma, in an isothermal framework. The presence of the X-point is found, locally, to affect both the shape of turbulent structures and the amplitude of fluctuations, in qualitative agreement with recent experimental observations. In particular, a quiescent region is found in the divertor scrape-off layer (SOL), close to the separatrix. Globally, a mild transport barrier spontaneously forms in the closed flux surfaces region near the separatrix, differently from simulations in limiter configuration. The effect of turbulence-driven Reynolds stress on the formation of the barrier is found to be weak by dedicated simulations, while turbulence damping around the X-point seems to globally reduce turbulent transport on the whole flux surface. The magnetic shear is thus pointed out as a possible element that contributes to the formation of edge transport barriers.

Issues of TOKAMAK Edge Plasma Transport and Plasma-material Interactions

2015 ◽  
Vol 6 (1-2) ◽  
pp. 86-91
Author(s):  
S. I. Krasheninnikov ◽  
J. Guterl ◽  
W. Lee ◽  
R. D. Smirnov ◽  
E. D. Marenkov ◽  
...  
Keyword(s):  
Edge Plasma ◽  
Plasma Transport ◽  
Tokamak Edge ◽  
Plasma Material Interactions

Alfvén wave forces, affecting the tokamak edge plasma in the presence of impurities or dust

1997 ◽  
Vol 4 (9) ◽  
pp. 3436-3438 ◽  
Author(s):  
V. S. Tsypin ◽  
S. V. Vladimirov ◽  
A. G. Elfimov ◽  
M. Tendler ◽  
A. S. de Assis ◽  
...  
Keyword(s):  
Edge Plasma ◽  
Alfven Wave ◽  
Wave Forces ◽  
Tokamak Edge

scholarly journals Dayside electron temperature and density profiles at Mars: First results from the MAVEN Langmuir probe and waves instrument

2015 ◽  
Vol 42 (21) ◽  
pp. 8846-8853 ◽  
Author(s):  
R. E. Ergun ◽  
M. W. Morooka ◽  
L. A. Andersson ◽  
C. M. Fowler ◽  
G. T. Delory ◽  
...  
Keyword(s):  
Electron Temperature ◽  
Langmuir Probe ◽  
Density Profiles ◽  
First Results

scholarly journals The Stark-crossing method for the simultaneous determination of the electron temperature and density in plasmas

2006 ◽  
Vol 44 ◽  
pp. 70-79 ◽  
Author(s):  
J Torres ◽  
O Carabaño ◽  
M Fernández ◽  
S Rubio ◽  
R Álvarez ◽  
...  
Keyword(s):  
Electron Temperature ◽  
Simultaneous Determination
Sign in / Sign up

Export Citation Format

Share Document