Observation of upper drift modes in radio frequency produced magnetized plasmas with frequency above ion cyclotron frequency

2015 ◽  
Vol 22 (12) ◽  
pp. 122111 ◽  
Author(s):  
Abhijit Ghosh ◽  
S. K. Saha ◽  
S. Chowdhury ◽  
M. S. Janaki
Keyword(s):  
Radio Frequency ◽  
Cyclotron Frequency ◽  
Magnetized Plasmas ◽  
Ion Cyclotron

Interchange stabilization of a mirror plasma using radio-frequency waves below the ion cyclotron frequency

1988 ◽  
Vol 31 (4) ◽  
pp. 714 ◽  
Author(s):  
J. J. Browning ◽  
R. Majeski ◽  
T. Intrator ◽  
N. Hershkowitz ◽  
S. Meassick
Keyword(s):  
Radio Frequency ◽  
Cyclotron Frequency ◽  
Ion Cyclotron ◽  
Radio Frequency Waves

Radio‐frequency wave interchange stability experiments below the ion cyclotron frequency

1989 ◽  
Vol 1 (8) ◽  
pp. 1692-1701 ◽  
Author(s):  
J. J. Browning ◽  
N. Hershkowitz ◽  
T. Intrator ◽  
R. Majeski ◽  
S. Meassick
Keyword(s):  
Radio Frequency ◽  
Cyclotron Frequency ◽  
Frequency Wave ◽  
Ion Cyclotron ◽  
Radio Frequency Wave

Fourier transform ion cyclotron resonance mass spectrometry at the true cyclotron frequency

2021 ◽  
Author(s):  
Konstantin O. Nagornov ◽  
Oleg Y. Tsybin ◽  
Edith Nicol ◽  
Anton N. Kozhinov ◽  
Yury O. Tsybin
Keyword(s):  
Mass Spectrometry ◽  
Fourier Transform ◽  
Cyclotron Resonance ◽  
Cyclotron Frequency ◽  
Ion Cyclotron Resonance ◽  
Ion Cyclotron

Magnetic fluctuations in the range of ion cyclotron frequency in ULQ and RFP plasmas

1995 ◽  
Vol 37 (12) ◽  
pp. 1433-1448 ◽  
Author(s):  
S Takeji ◽  
Y Hirano ◽  
N Inoue ◽  
J Miyazawa ◽  
J Morikawa ◽  
...  
Keyword(s):  
Cyclotron Frequency ◽  
Magnetic Fluctuations ◽  
Ion Cyclotron

scholarly journals Plasma potential enhancement by rf heating near the ion-cyclotron frequency

1986 ◽  
Vol 29 (4) ◽  
pp. 902 ◽  
Author(s):  
D. K. Smith ◽  
K. Brau ◽  
P. Goodrich ◽  
J. Irby ◽  
M. E. Mauel ◽  
...  
Keyword(s):  
Cyclotron Frequency ◽  
Plasma Potential ◽  
Rf Heating ◽  
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.

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