scholarly journals Comment on "Mode Conversion of Waves In The Ion-Cyclotron Frequency Range in Magnetospheric Plasmas"

2014 ◽  
Author(s):  
Eun Kim ◽  
J. R. Johnson
Keyword(s):  
Cyclotron Frequency ◽  
Mode Conversion ◽  
Frequency Range ◽  
Ion Cyclotron

scholarly journals Novel internal measurements of ion cyclotron frequency range fast-ion driven modes

2021 ◽  
Author(s):  
Neal A Crocker ◽  
Shawn X Tang ◽  
Kathreen E Thome ◽  
Jeff Lestz ◽  
Elena Belova ◽  
...  
Keyword(s):  
Cyclotron Frequency ◽  
Harmonic Wave ◽  
Wave Number ◽  
Frequency Range ◽  
High Wave Number ◽  
Minor Radius ◽  
Ion Cyclotron ◽  
Cyclotron Emission ◽  
Edge Localized Modes ◽  
Fast Ion

Abstract Novel internal measurements and analysis of ion cyclotron frequency range fast-ion driven modes in DIII-D are presented. Observations, including internal density fluctuation (ñ) measurements obtained via Doppler Backscattering, are presented for modes at low harmonics of the ion cyclotron frequency localized in the edge. The measurements indicate that these waves, identified as coherent Ion Cyclotron Emission (ICE), have high wave number, _⊥ρ_fast ≳ 1, consistent with the cyclotron harmonic wave branch of the magnetoacoustic cyclotron instability (MCI), or electrostatic instability mechanisms. Measurements show extended spatial structure (at least ~ 1/6 the minor radius). These edge ICE modes undergo amplitude modulation correlated with edge localized modes (ELM) that is qualitatively consistent with expectations for ELM-induced fast-ion transport.

scholarly journals Parametric decay in the edge plasma of ASDEX during fast wave heating in the ion cyclotron frequency range

1988 ◽  
Vol 28 (9) ◽  
pp. 1603-1609 ◽  
Author(s):  
R. Van Nieuwenhove ◽  
G. Van Oost ◽  
J.-M. Noterdaeme ◽  
M. Brambilla ◽  
J. Gernhardt ◽  
...  
Keyword(s):  
Cyclotron Frequency ◽  
Edge Plasma ◽  
Fast Wave ◽  
Frequency Range ◽  
Parametric Decay ◽  
Wave Heating ◽  
Ion Cyclotron

scholarly journals Solar Wind Electric Fields in the Ion Cyclotron Frequency Range

2006 ◽  
Vol 645 (1) ◽  
pp. 704-710 ◽  
Author(s):  
P. J. Kellogg ◽  
S. D. Bale ◽  
F. S. Mozer ◽  
T. S. Horbury ◽  
H. Reme
Keyword(s):  
Solar Wind ◽  
Electric Fields ◽  
Cyclotron Frequency ◽  
Frequency Range ◽  
Ion Cyclotron

Observation of Ion-Cyclotron-Frequency Mode-Conversion Flow Drive in Tokamak Plasmas

2008 ◽  
Vol 101 (23) ◽  
Author(s):  
Y. Lin ◽  
J. E. Rice ◽  
S. J. Wukitch ◽  
M. J. Greenwald ◽  
A. E. Hubbard ◽  
...  
Keyword(s):  
Cyclotron Frequency ◽  
Mode Conversion ◽  
Frequency Mode ◽  
Tokamak Plasmas ◽  
Ion Cyclotron
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