High Harmonic Fast Wave Current Drive Experiments on NSTX

2003 ◽  
Author(s):  
P. M. Ryan
Keyword(s):  
High Harmonic ◽  
Current Drive ◽  
Fast Wave

Resonant wave-filament interactions as a loss mechanism for HHFW heating and current drive

2021 ◽  
Author(s):  
Wouter Tierens ◽  
James R Myra ◽  
Roberto Bilato ◽  
Laurent Colas
Keyword(s):  
Surface Wave ◽  
Surface Waves ◽  
High Harmonic ◽  
Current Drive ◽  
Fast Wave ◽  
Power Losses ◽  
Loss Mechanism ◽  
Resonant Wave ◽  
Plasma Filaments ◽  
Analytic Expression

Abstract Perkins et al. PRL 2012 [1] reported unexpected power losses during High Harmonic Fast Wave (HHFW) heating and current drive in NSTX. Recently, Tierens et al [2] proposed that these losses may be attributable to surface waves on field-aligned plasma filaments, which carry power along the filaments, to be lost at the endpoints where the filaments intersect the limiters. In this work, we show that there is indeed a resonant loss mechanism associated with the excitation of these surface waves, and derive an analytic expression for the power lost to surface wave modes at each filament.

Current drive with combined electron cyclotron wave and high harmonic fast wave in tokamak plasmas

2016 ◽  
Vol 23 (12) ◽  
pp. 122504 ◽  
Author(s):  
J. C. Li ◽  
X. Y. Gong ◽  
J. Q. Dong ◽  
J. Wang ◽  
N. Zhang ◽  
...  
Keyword(s):  
High Harmonic ◽  
Electron Cyclotron ◽  
Current Drive ◽  
Fast Wave ◽  
Tokamak Plasmas ◽  
Electron Cyclotron Wave

Investigation of high harmonic fast wave for current drive on CFETR

2019 ◽  
Vol 145 ◽  
pp. 72-78 ◽  
Author(s):  
Xiang Zhu ◽  
Guoqiang Li ◽  
Jiale Chen ◽  
Muquan Wu ◽  
Xiaodong Lin ◽  
...  
Keyword(s):  
High Harmonic ◽  
Current Drive ◽  
Fast Wave

Modeling of high harmonic fast wave current drive on EAST tokamak

2015 ◽  
Vol 22 (10) ◽  
pp. 102510 ◽  
Author(s):  
J. C. Li ◽  
X. Y. Gong ◽  
J. Q. Dong ◽  
Q. D. Gao ◽  
N. Zhang ◽  
...  
Keyword(s):  
High Harmonic ◽  
Current Drive ◽  
Fast Wave

High harmonic fast wave heating efficiency enhancement and current drive at longer wavelength on the National Spherical Torus Experiment

2008 ◽  
Vol 15 (5) ◽  
pp. 056104 ◽  
Author(s):  
J. Hosea ◽  
R. E. Bell ◽  
B. P. LeBlanc ◽  
C. K. Phillips ◽  
G. Taylor ◽  
...  
Keyword(s):  
High Harmonic ◽  
Current Drive ◽  
Fast Wave ◽  
Efficiency Enhancement ◽  
Spherical Torus ◽  
Heating Efficiency ◽  
Wave Heating

High non-inductive fraction H-mode discharges generated by high-harmonic fast wave heating and current drive in the National Spherical Torus Experiment

2012 ◽  
Vol 19 (4) ◽  
pp. 042501 ◽  
Author(s):  
G. Taylor ◽  
J. C. Hosea ◽  
C. E. Kessel ◽  
B. P. LeBlanc ◽  
D. Mueller ◽  
...  
Keyword(s):  
High Harmonic ◽  
Current Drive ◽  
Fast Wave ◽  
Spherical Torus ◽  
Fraction H ◽  
Wave Heating

High harmonic fast wave heating and current drive on NSTX-system and experimental plan

1999 ◽  
Author(s):  
J. R. Wilson ◽  
S. Bernabei ◽  
M. Carter ◽  
R. Ellis ◽  
J. C. Hosea ◽  
...  
Keyword(s):  
High Harmonic ◽  
Current Drive ◽  
Fast Wave ◽  
Wave Heating ◽  
Experimental Plan

Fast wave current drive

1985 ◽  
Author(s):  
J. Goree ◽  
M. Ono ◽  
P. Colestock ◽  
R. Horton ◽  
D. McNeill ◽  
...  
Keyword(s):  
Current Drive ◽  
Fast Wave
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