Short wavelength lower hybrid waves nonlinearly excited due to ponderomotive density modulations

1983 ◽  
Vol 33 (3) ◽  
pp. 275-286 ◽  
Author(s):  
R. Klíma ◽  
I. M. Pankratov ◽  
P. Pavlo ◽  
V. A. Petržílka
Keyword(s):  
Short Wavelength ◽  
Lower Hybrid ◽  
Hybrid Waves ◽  
Lower Hybrid Waves

Decay of the lower-hybrid wave into an ion cyclotron mode and a whistler wave

1982 ◽  
Vol 28 (1) ◽  
pp. 149-157 ◽  
Author(s):  
M. K. Saxena
Keyword(s):  
Short Wavelength ◽  
Whistler Wave ◽  
Lower Hybrid ◽  
Hybrid Wave ◽  
Lower Hybrid Wave ◽  
Parametrically Excited ◽  
Ion Cyclotron ◽  
Cyclotron Mode ◽  
Hybrid Waves ◽  
Lower Hybrid Waves

The electrostatic lower-hybrid wave is shown to decay parametrically into a whistler wave and a resonant ion cyclotron mode or an ion cyclotron quasi-mode or a reactive quasi-mode. The convective threshold powers for these decay instabilities are found to be much larger than presently available pump powers. These decay instabilities, however, are expected to play an important role in the saturation of the parametrically excited short-wavelength lower-hybrid waves having frequency close to ωlh.

Production of plasma vortices by lower-hybrid waves

1981 ◽  
Vol 26 (2) ◽  
pp. 359-367 ◽  
Author(s):  
M. Y. Yu ◽  
P. K. Shukla ◽  
H. U. Rahman
Keyword(s):  
Plasma Heating ◽  
Finite Amplitude ◽  
Current Drive ◽  
Lower Hybrid ◽  
Magnetic Fluctuations ◽  
Field Diffusion ◽  
Modulational Instabilities ◽  
Hybrid Waves ◽  
Plasma Vortices ◽  
Lower Hybrid Waves

Nonlinear excitation of electrostatic and magnetostatic zero-frequency modes by finite-amplitude lower-hybrid waves is considered. It is found that modulational instabilities can give rise to enhanced plasma vortices. Dispersion relations, as well as analytical expressions for the growth rates, are obtained. The enhanced vortices may cause anomalous cross-field diffusion which can affect plasma confinement in tokamak devices when lower-hybrid waves are used for plasma heating or current drive. We found that magnetic fluctuations associated with the parametrically driven magnetostatic mode are of particular importance in tokamak plasmas.

scholarly journals Lower hybrid waves at the magnetosheath separatrix region

2020 ◽  
Author(s):  
Binbin Tang ◽  
Wenya Li ◽  
Daniel Bruce Graham ◽  
Chi Wang ◽  
Yuri V. Khotyaintsev ◽  
...  
Keyword(s):  
Lower Hybrid ◽  
Hybrid Waves ◽  
Lower Hybrid Waves

Experimental study of non-thermal electron generation by lower hybrid waves in the ASDEX tokamak

1986 ◽  
Vol 26 (8) ◽  
pp. 1106-1111 ◽  
Author(s):  
R. Bartiromo ◽  
M. Hesse ◽  
F.X. Söldner ◽  
R. Burhenn ◽  
G. Fussmann ◽  
...  
Keyword(s):  
Experimental Study ◽  
Lower Hybrid ◽  
Thermal Electron ◽  
Electron Generation ◽  
Hybrid Waves ◽  
Lower Hybrid Waves

RF heating of plasmas by electron Landau damping of lower-hybrid waves

1979 ◽  
Vol 19 (8) ◽  
pp. 1073-1083 ◽  
Author(s):  
V.S. Chan ◽  
S.C. Chiu ◽  
G.E. Guest ◽  
R.W. Harvey ◽  
T. Ohkawa
Keyword(s):  
Landau Damping ◽  
Lower Hybrid ◽  
Rf Heating ◽  
Hybrid Waves ◽  
Lower Hybrid Waves

scholarly journals An assessment of full wave effects on the propagation and absorption of lower hybrid waves

2009 ◽  
Vol 16 (7) ◽  
pp. 072502 ◽  
Author(s):  
J. C. Wright ◽  
P. T. Bonoli ◽  
A. E. Schmidt ◽  
C. K. Phillips ◽  
E. J. Valeo ◽  
...  
Keyword(s):  
Lower Hybrid ◽  
Full Wave ◽  
Wave Effects ◽  
Hybrid Waves ◽  
Lower Hybrid Waves
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