Parametric coupling of lower hybrid wave with gyrating ion beam driven ion cyclotron instability in a plasma

2013 ◽  
Vol 20 (7) ◽  
pp. 072112
Author(s):  
Rohtash Singh ◽  
V. K. Tripathi
Keyword(s):  
Ion Beam ◽  
Lower Hybrid ◽  
Hybrid Wave ◽  
Lower Hybrid Wave ◽  
Cyclotron Instability ◽  
Ion Cyclotron ◽  
Parametric Coupling

Quasimode decay of a lower-hybrid wave in a two-electron-temperature plasma

1996 ◽  
Vol 56 (2) ◽  
pp. 237-249
Author(s):  
A. Sudarshan ◽  
S. K. Sharma
Keyword(s):  
Growth Rate ◽  
Electron Temperature ◽  
Decay Channel ◽  
Lower Hybrid ◽  
Hybrid Wave ◽  
Lower Hybrid Wave ◽  
Temperature Plasma ◽  
Parametric Decay ◽  
Cylindrical Plasma ◽  
Ion Cyclotron

We study the quasimode decay of a lower-hybrid wave and a damped ion cyclotron wave in a plasma having two kinds of electrons. This decay channel is also investigated for a cylindrical plasma. The behaviour of the threshold and growth rate with variations in Tn/Tc and non/noc are studied, and a comparison is made with previous results. Our results show that the growth rate and the threshold for the onset of parametric decay are influenced by the presence of the second electron species.

scholarly journals Excitation of lower hybrid wave by an ion beam in magnetized plasma

2013 ◽  
Vol 31 (4) ◽  
pp. 747-752 ◽  
Author(s):  
Ved Prakash ◽  
Ruby Gupta ◽  
Suresh C. Sharma ◽  
Vijayshri
Keyword(s):  
Growth Rate ◽  
Ion Beam ◽  
Maximum Growth ◽  
Maximum Growth Rate ◽  
Magnetized Plasma ◽  
Unstable Wave ◽  
Lower Hybrid ◽  
Hybrid Wave ◽  
Lower Hybrid Wave ◽  
Beam Density

AbstractLower hybrid wave excitation in magnetized plasma by an ion beam via Cerenkov interaction is studied. The lower hybrid modes showed maximum growth rate of the instability when phase velocity of the lower hybrid mode along the magnetic field is comparable to the electron thermal velocity. We have derived the expression for the maximum growth rate and found that the growth rate of the instability increases with beam density. Moreover, the maximum growth rate of the instability scales as the one-third power of the beam density. The real part of the frequency of the unstable wave increases as almost the square root of the beam energy.

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.

Investigation of lower hybrid wave coupling and the related effects of ion cyclotron range of frequencies in EAST

2012 ◽  
Vol 54 (10) ◽  
pp. 105003 ◽  
Author(s):  
E H Kong ◽  
T Zhang ◽  
B J Ding ◽  
L Liu ◽  
C M Qin ◽  
...  
Keyword(s):  
Lower Hybrid ◽  
Hybrid Wave ◽  
Lower Hybrid Wave ◽  
Wave Coupling ◽  
Ion Cyclotron

Generation of the kinetic alfven wave and lower hybrid wave in space plasma

2001 ◽  
Vol 7 (2s) ◽  
pp. 59-66
Author(s):  
A.K. Yukhimuk ◽  
◽  
V.N. Fedun ◽  
Yu. Voitenko ◽  
E.K. Sirenko ◽  
...  
Keyword(s):  
Space Plasma ◽  
Alfven Wave ◽  
Lower Hybrid ◽  
Hybrid Wave ◽  
Lower Hybrid Wave ◽  
Kinetic Alfvén Wave ◽  
Kinetic Alfven Wave

X-ray Measurements during Plasma Current Start-up Experiments using the Lower Hybrid Wave on the TST-2 Spherical Tokamak

2012 ◽  
Vol 132 (7) ◽  
pp. 485-489 ◽  
Author(s):  
Takuma Wakatsuki ◽  
Akira Ejiri ◽  
Hidetoshi Kakuda ◽  
Yuichi Takase ◽  
Takanori Ambo ◽  
...  
Keyword(s):  
Lower Hybrid ◽  
Spherical Tokamak ◽  
Plasma Current ◽  
Hybrid Wave ◽  
Lower Hybrid Wave ◽  
X Ray ◽  
Start Up

High field side lower hybrid wave launch for steady state plasma sustainment

2018 ◽  
Vol 58 (12) ◽  
pp. 126032 ◽  
Author(s):  
P.T. Bonoli ◽  
G.M. Wallace ◽  
S. Shiraiwa ◽  
S.G. Baek ◽  
J. Doody ◽  
...  
Keyword(s):  
Steady State ◽  
High Field ◽  
Lower Hybrid ◽  
Hybrid Wave ◽  
Lower Hybrid Wave ◽  
State Plasma
Sign in / Sign up

Export Citation Format

Share Document