Ergodic behavior of lower hybrid decay wave ray trajectories in toroidal geometry

1978 ◽  
Vol 21 (12) ◽  
pp. 2263 ◽  
Author(s):  
Jean-Marie Wersinger ◽  
Edward Ott ◽  
John M. Finn
Keyword(s):  
Lower Hybrid ◽  
Wave Ray ◽  
Ergodic Behavior ◽  
Ray Trajectories ◽  
Toroidal Geometry

Modified electron whistler dispersion law

2002 ◽  
Vol 67 (2-3) ◽  
pp. 149-161 ◽  
Author(s):  
B. V. LUNDIN ◽  
C. KRAFFT
Keyword(s):  
Cold Plasma ◽  
Wave Dispersion ◽  
Plasma Electron ◽  
Lower Hybrid ◽  
Analytical Treatment ◽  
Dispersion Law ◽  
Wide Range ◽  
Lightning Discharges ◽  
Ray Trajectories ◽  
Dynamical Spectra

A modified electron whistler dispersion law is derived in the cold-plasma approximation for analytical treatment and simplified numerical calculations of wave propagation in a wide range of ratios ωc/ωp of electron gyro- to plasma frequencies if the wave frequency is much less than ωp. The net contribution of ions to the wave dispersion law is expressed through the value of the lower-hybrid resonance frequency ωlhr only. This approximate dispersion law is valid in a wide frequency domain, that is, from the range of ωlhr until the domain where the contribution of ions can be neglected. A comparison of geometrical-optics ray trajectories calculated by the use of modified and total cold-plasma electron whistler dispersion laws is presented for the case of the Earth's plasma environment. Computer simulations of dynamical spectra of whistler waves excited by lightning discharges and registered in remote regions of the Earth's plasmasphere reveal good numerical stability of the developed ray-tracing code.

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 ◽  
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