Neutral Transport Analysis in Plasma Edge Region of the GAMMA-10 Central-Cell

2009 ◽  
Vol 55 (2T) ◽  
pp. 185-190
Author(s):  
Y. Higashizono ◽  
Y. Nakashima ◽  
M. Shoji ◽  
N. Nishino ◽  
S. Kobayashi ◽  
...  
Keyword(s):  
Central Cell ◽  
Plasma Edge ◽  
Edge Region ◽  
Transport Analysis

Balmer- Intensity and Particle Flux in Plasma Edge Region of LHD

2002 ◽  
Vol 42 (6-7) ◽  
pp. 616-621 ◽  
Author(s):  
M. Goto ◽  
S. Morita ◽  
LHD experiment group
Keyword(s):  
Particle Flux ◽  
Plasma Edge ◽  
Edge Region

Stochastic magnetic and ambipolar electric fields in the plasma edge region of RFX

1996 ◽  
Vol 36 (4) ◽  
pp. 435-442 ◽  
Author(s):  
V Antoni ◽  
E Martines ◽  
M Bagatin ◽  
D Desideri ◽  
G Serianni
Keyword(s):  
Electric Fields ◽  
Plasma Edge ◽  
Edge Region

Experimental evidence of significant temperature fluctuations in the plasma edge region of the TJ-I tokamak

1992 ◽  
Vol 69 (8) ◽  
pp. 1205-1208 ◽  
Author(s):  
C. Hidalgo ◽  
R. Balbín ◽  
M. A. Pedrosa ◽  
I. García-Cortés ◽  
M. A. Ochando
Keyword(s):  
Experimental Evidence ◽  
Temperature Fluctuations ◽  
Plasma Edge ◽  
Edge Region ◽  
Significant Temperature

scholarly journals Diffraction of radio frequency waves by spatially modulated interfaces in the plasma edge in tokamaks

2019 ◽  
Vol 85 (3) ◽  
Author(s):  
A. D. Papadopoulos ◽  
E. N. Glytsis ◽  
A. K. Ram ◽  
S. I. Valvis ◽  
P. Papagiannis ◽  
...  
Keyword(s):  
Plane Wave ◽  
Radio Frequency ◽  
Density Fluctuations ◽  
Fusion Plasmas ◽  
Plasma Edge ◽  
Edge Region ◽  
Profile Control ◽  
Spatially Periodic ◽  
Magnetized Cold Plasma ◽  
Random Fluctuations

The use of radio frequency (RF) waves in fusion plasmas for heating, for non-inductive current generation, for profile control and for diagnostics has been well established. The RF waves, excited by antenna structures placed near the wall of a fusion device, have to propagate through density fluctuations at the plasma edge. These fluctuations can modify the properties of the RF waves that propagate towards the core of the plasma. A full-wave electromagnetic computational code ScaRF based on the finite difference frequency domain (FDFD) method has been developed to study the effect of density turbulence on RF waves. The anisotropic plasma permittivity used in the scattering studies is that for a magnetized, cold plasma. The code is used to study the propagation of an RF plane wave through a modulated, spatially periodic density interface. Such an interface could arise in the edge region due to magnetohydrodynamic instability or drift waves. The frequency of the plane wave is taken to be in the range of the electron cyclotron frequency. The scattering analysis is applicable to ITER-like plasmas, as well as to plasmas in medium sized tokamaks such as TCV, ASDEX-U and DIII-D. The effect of different density contrasts across the interface and of different spatial modulations are discussed. While ScaRF is used to study a periodic density fluctuation, the code is general enough to include different varieties of density fluctuations in the edge region – such as blobs and filaments, and spatially random fluctuations.

Longitudinal distribution of total ozone content in edge region of antarctic stratospheric vortex

2005 ◽  
Vol 11 (5-6) ◽  
pp. 5-11
Author(s):  
A.V. Grytsai ◽  
◽  
O.M. Evtushevsky ◽  
G.P. Milinevsky ◽  
Z.I. Grytsai ◽  
...  
Keyword(s):  
Total Ozone ◽  
Ozone Content ◽  
Longitudinal Distribution ◽  
Total Ozone Content ◽  
Edge Region
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