scholarly journals Particle and Momentum Transport in Tokamak Plasmas, the Complicated Path towards the Experimental Validation of the Theoretical Predictions of Transport in Fusion Plasmas

2013 ◽  
Vol 8 (0) ◽  
pp. 2102032-2102032 ◽  
Author(s):  
Clemente ANGIONI
Keyword(s):  
Experimental Validation ◽  
Momentum Transport ◽  
Fusion Plasmas ◽  
Tokamak Plasmas ◽  
Theoretical Predictions

Tungsten measurement on Alcator C-Mod and EBIT for future fusion reactors1This article is part of a Special Issue on the 10th International Colloquium on Atomic Spectra and Oscillator Strengths for Astrophysical and Laboratory Plasmas.

2011 ◽  
Vol 89 (5) ◽  
pp. 591-597 ◽  
Author(s):  
Y.A. Podpaly ◽  
J.E. Rice ◽  
P. Beiersdorfer ◽  
M.L. Reinke ◽  
J. Clementson ◽  
...  
Keyword(s):  
Ion Trap ◽  
Oscillator Strengths ◽  
Continuum Emission ◽  
Tokamak Plasmas ◽  
Ion Temperature ◽  
International Colloquium ◽  
Plasma Facing Components ◽  
Laboratory Plasmas ◽  
Electron Beam Ion Trap ◽  
Theoretical Predictions

Tungsten will be an important element in nearly all future fusion reactors because of its presence in plasma facing components. This makes tungsten a good candidate for a diagnostic element for ion temperature and toroidal velocity measurement, and it makes understanding tungsten emissions important for tokamak power balance. The effect of tungsten on tokamak plasmas is investigated at the Alcator C-Mod tokamak using VUV, bolometry, and soft X-ray spectroscopy. Tungsten was present in Alcator C-Mod as a plasma facing component and through laser blow-off impurity injection. Quasi-continuum emission previously seen at other tokamaks has been identified. Theoretical predictions are presented of tungsten emission that could be expected in future Alcator C-Mod measurements. Furthermore, spectra of highly charged tungsten ions have been studied at the SuperEBIT electron beam ion trap. This emission could prove useful for spectroscopic diagnostics of future high-temperature fusion reactor plasmas.

scholarly journals Turbulent momentum transport in core tokamak plasmas and penetration of scrape-off layer flows

2013 ◽  
Vol 55 (7) ◽  
pp. 074001 ◽  
Author(s):  
J Abiteboul ◽  
Ph Ghendrih ◽  
V Grandgirard ◽  
T Cartier-Michaud ◽  
G Dif-Pradalier ◽  
...  
Keyword(s):  
Momentum Transport ◽  
Tokamak Plasmas ◽  
Turbulent Momentum

scholarly journals Novel RANK Antagonists for the Treatment of Bone-Resorptive Disease: Theoretical Predictions and Experimental Validation

2014 ◽  
Vol 29 (6) ◽  
pp. 1466-1477 ◽  
Author(s):  
Stéphane Téletchéa ◽  
Verena Stresing ◽  
Soizic Hervouet ◽  
Marc Baud'huin ◽  
Marie-Françoise Heymann ◽  
...  
Keyword(s):  
Experimental Validation ◽  
Theoretical Predictions

Observation of Anomalous Momentum Transport in Tokamak Plasmas with No Momentum Input

2003 ◽  
Vol 91 (20) ◽  
Author(s):  
W. D. Lee ◽  
J. E. Rice ◽  
E. S. Marmar ◽  
M. J. Greenwald ◽  
I. H. Hutchinson ◽  
...  
Keyword(s):  
Momentum Transport ◽  
Tokamak Plasmas

Wave-Induced Momentum Transport and Flow Drive in Tokamak Plasmas

1999 ◽  
Vol 82 (9) ◽  
pp. 1871-1874 ◽  
Author(s):  
L. A. Berry ◽  
E. F. Jaeger ◽  
D. B. Batchelor
Keyword(s):  
Momentum Transport ◽  
Tokamak Plasmas ◽  
Wave Induced

scholarly journals Breakdown in CO2 and CO2/C2F4 Mixtures at Elevated Temperatures in the Range 1000-4000 K

2019 ◽  
Vol 6 (1) ◽  
pp. 39-42 ◽  
Author(s):  
M. Seeger ◽  
T. Votteler ◽  
S. Pancheshnyi ◽  
J. Carstensen ◽  
A. Garyfallos ◽  
...  
Keyword(s):  
Electric Fields ◽  
Experimental Validation ◽  
Elevated Temperatures ◽  
Electric Breakdown ◽  
Circuit Breakers ◽  
Critical Fields ◽  
Present Contribution ◽  
Fundamental Parameters ◽  
Theoretical Predictions ◽  
Temperature And Pressure

CO<sub>2</sub> is a promising gas for replacement of SF<sub>6</sub> in high voltage circuit breakers. The electric breakdown in CO<sub>2</sub> and mixtures with C<sub>2</sub>F4 from PTFE nozzles is, however, still not fully understood. To understand the electric breakdown in CO<sub>2</sub> and mixtures with C<sub>2</sub>F<sub>4</sub> from PTFE nozzles fundamental parameters like the temperature and pressure dependence of critical electric fields are needed. Data on critical fields is usually available based on simulations only and experimental validation is lacking so far. Our present contribution aims to close this gap and presents experiments where the breakdown fields in uniform and weakly non-uniform electric fields are determined at various temperatures and pressures. The gas temperatures were estimated from measurements with pyrometers. The results are compared to theoretical predictions.

Nondiffusive Toroidal-Momentum-Transport in the JFT-2M Tokamak Plasmas

1998 ◽  
Vol 67 (12) ◽  
pp. 4089-4097 ◽  
Author(s):  
Katsumi Ida ◽  
Yukitoshi Miura ◽  
Kimitaka Itoh ◽  
Sanae-I. Itoh ◽  
Toshiaki Matsuda
Keyword(s):  
Momentum Transport ◽  
Tokamak Plasmas

Limits of Performance Gain of Aligned CNT Over Randomized Network: Theoretical Predictions and Experimental Validation

2007 ◽  
Vol 28 (7) ◽  
pp. 593-595 ◽  
Author(s):  
N. Pimparkar ◽  
C. Kocabas ◽  
Seong Jun Kang ◽  
J. Rogers ◽  
M.A. Alam
Keyword(s):  
Experimental Validation ◽  
Performance Gain ◽  
Theoretical Predictions
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