How plasma parameters fluctuations influence emissive probe measurements

2015 ◽  
Vol 22 (5) ◽  
pp. 053511 ◽  
Author(s):  
G. Bousselin ◽  
N. Plihon ◽  
N. Lemoine ◽  
J. Cavalier ◽  
S. Heuraux
Keyword(s):  
Plasma Parameters ◽  
Probe Measurements ◽  
Emissive Probe

scholarly journals COMPARISON BETWEEN 2D TURBULENCE MODEL ESEL AND EXPERIMENTAL DATA FROM AUG AND COMPASS TOKAMAKS

2015 ◽  
Vol 55 (2) ◽  
pp. 128-135 ◽  
Author(s):  
Peter Ondac ◽  
Jan Horacek ◽  
Jakub Seidl ◽  
Petr Vondrácek ◽  
Hans Werner Müller ◽  
...  
Keyword(s):  
Turbulent Transport ◽  
Plasma Potential ◽  
Density Fluctuations ◽  
Tokamak Plasma ◽  
Plasma Parameters ◽  
Fluid Turbulence ◽  
Radial Profiles ◽  
Parallel Dynamics ◽  
Two Machines ◽  
Probe Measurements

<!-- p, li { white-space: pre-wrap; } --><p style="text-indent: 0px; margin: 0px;">In this article we have used the 2D fluid turbulence numerical model, ESEL, to simulate turbulent transport in edge tokamak plasma. Basic plasma parameters from the ASDEX Upgrade and COMPASS tokamaks are used as input for the model, and the output is compared with experimental observations obtained by reciprocating probe measurements from the two machines. Agreements were found in radial profiles of mean plasma potential and temperature, and in a level of density fluctuations. Disagreements, however, were found in the level of plasma potential and temperature fluctuations. This implicates a need for an extension of the ESEL model from 2D to 3D to fully resolve the parallel dynamics, and the coupling from the plasma to the sheath.</p>

scholarly journals In situ measurements of sub-meter plasma waves over low-latitude ionosphere during Leonid-99 meteor storm

2004 ◽  
Vol 22 (6) ◽  
pp. 2033-2036
Author(s):  
S. P. Gupta ◽  
R. Sekar ◽  
Y. B. Acharya
Keyword(s):  
High Frequency ◽  
Plasma Waves ◽  
Plasma Parameters ◽  
Low Latitude ◽  
Scale Size ◽  
Meteor Storm ◽  
Low Latitude Ionosphere ◽  
First Time ◽  
Probe Measurements

Abstract. In situ probe measurements of plasma parameters were carried out on 18 and 20 November 1999 from Sriharikota, India, a low-latitude rocket launching station to investigate the effect of a Leonid meteor storm. Results obtained on plasma waves using a high frequency Langmuir probe are discussed. The characteristics of the sub-meter scale size plasma waves observed for the first time during Leonid meteor storm are presented. Based on the results obtained from both the rocket flights and comparison with the results obtained from previous rocket flights from the same location, it appears these sub-meter waves are associated with intense meteoric activity. A possible mechanism based on the dependence of the meteoric activity and its limitations are discussed.

Effect of filament supports on emissive probe measurements

2013 ◽  
Vol 84 (1) ◽  
pp. 013506 ◽  
Author(s):  
X. Wang ◽  
C. T. Howes ◽  
M. Horányi ◽  
S. Robertson
Keyword(s):  
Probe Measurements ◽  
Emissive Probe

Emissive probe measurements of plasma potential fluctuations in the edge plasma regions of tokamaks

2003 ◽  
Vol 74 (3) ◽  
pp. 1583-1587 ◽  
Author(s):  
P. Balan ◽  
R. Schrittwieser ◽  
C. Ioniţă ◽  
J. A. Cabral ◽  
H. F. C. Figueiredo ◽  
...  
Keyword(s):  
Plasma Potential ◽  
Edge Plasma ◽  
Potential Fluctuations ◽  
Probe Measurements ◽  
Emissive Probe

Probe measurements of plasma parameters in torch plasmatron

2014 ◽  
Vol 52 (2) ◽  
pp. 145-149
Author(s):  
V. P. Konovalov ◽  
A. S. Savelev ◽  
E. E. Son
Keyword(s):  
Plasma Parameters ◽  
Probe Measurements

Probe measurements of the boundary plasma parameters in the TM-1-MH tokamak

1983 ◽  
Vol 33 (6) ◽  
pp. 663-668 ◽  
Author(s):  
K. Jakubka ◽  
J. Stöckel ◽  
F. Žáček ◽  
S. Nanobashvili
Keyword(s):  
Plasma Parameters ◽  
Boundary Plasma ◽  
Probe Measurements
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