Electron cyclotron heating by whistler waves generated during the interaction of a laser pulse with a magnetized plasma

2005 ◽  
Vol 12 (8) ◽  
pp. 082107 ◽  
Author(s):  
V. I. Sotnikov ◽  
Y. Sentoku ◽  
V. B. Krasovitskii
Keyword(s):  
Laser Pulse ◽  
Electron Cyclotron ◽  
Magnetized Plasma ◽  
Electron Cyclotron Heating ◽  
Whistler Waves

scholarly journals Relativistic and ponderomotive self-focusing of a laser pulse in magnetized plasma

2012 ◽  
Vol 30 (4) ◽  
pp. 659-664 ◽  
Author(s):  
Anamika Sharma ◽  
V.K. Tripathi
Keyword(s):  
Laser Pulse ◽  
Cyclotron Frequency ◽  
Ponderomotive Force ◽  
Beam Width ◽  
Laser Frequency ◽  
Electron Cyclotron ◽  
The Self ◽  
Magnetized Plasma ◽  
Electron Cyclotron Frequency ◽  
Self Focusing

AbstractThe self-focusing of an intense right circularly polarized Gaussian laser pulse in magnetized plasma is studied. The ions are taken to be immobile and relativistic mass effect is incorporated in both the plasma frequency (ωp) and the electron cyclotron frequency (ωc) while determining the ponderomotive force on electrons. The ponderomotive force causes electron expulsion when the effective electron cyclotron frequency is below twice the laser frequency. The nonlinear plasma dielectric function due to ponderomotive and relativistic effects is derived, which is then employed in beam-width parameter equation to study the self-focusing of the laser beam. From this, we estimate the importance of relativistic self-focusing in comparison with ponderomotive self-focusing at moderate laser intensities. The beam width parameter decreases with magnetic field indicating better self-focusing. When the laser intensity is very high, the relativistic gamma factor can be modeled as ${\rm \gamma} = 0.8\left({{{{\rm \omega} _c } / {\rm \omega} }} \right)+ \sqrt {1 + a_0^2 }$γ=0.8(ωc/ω)+1+a02 where ω and a0 are the laser frequency and the normalized laser field strength, respectively. The cyclotron effects on the self-focusing of laser pulse are reduced at high field strengths.

Electron cyclotron heating in the compact ignition tokamak

1987 ◽  
Author(s):  
E. Mazzucato ◽  
I. Fidone ◽  
R. L. Meyer
Keyword(s):  
Electron Cyclotron ◽  
Electron Cyclotron Heating

Transition phenomena observed during edge electron cyclotron heating in the Heliotron-E helical device

1995 ◽  
Vol 26 (1-4) ◽  
pp. 159-165 ◽  
Author(s):  
K. Nagasaki ◽  
H. Zushi ◽  
T. Mizuuchi ◽  
K. Kondo ◽  
F. Sano ◽  
...  
Keyword(s):  
Electron Cyclotron ◽  
Electron Cyclotron Heating

Suppression of Trapped Energetic Ions Driven Resistive Interchange Modes with Electron Cyclotron Heating in a Helical Plasma

2017 ◽  
Vol 118 (12) ◽  
Author(s):  
X. D. Du ◽  
K. Toi ◽  
S. Ohdachi ◽  
K. Y. Watanabe ◽  
H. Takahashi ◽  
...  
Keyword(s):  
Electron Cyclotron ◽  
Electron Cyclotron Heating ◽  
Energetic Ions

Progress in the ITER electron cyclotron heating and current drive system design

2015 ◽  
Vol 96-97 ◽  
pp. 547-552 ◽  
Author(s):  
Toshimichi Omori ◽  
Ferran Albajar ◽  
Tullio Bonicelli ◽  
Giuseppe Carannante ◽  
Mario Cavinato ◽  
...  
Keyword(s):  
System Design ◽  
Electron Cyclotron ◽  
Current Drive ◽  
Drive System ◽  
Electron Cyclotron Heating

Effect of turbulence in a transient process of electron-cyclotron heating in the L-2M stellarator

JETP Letters ◽  
2015 ◽  
Vol 102 (4) ◽  
pp. 217-221 ◽  
Author(s):  
G. M. Batanov ◽  
V. D. Borzosekov ◽  
D. G. Vasil’kov ◽  
E. M. Konchekov ◽  
D. V. Malakhov ◽  
...  
Keyword(s):  
Transient Process ◽  
Electron Cyclotron ◽  
Electron Cyclotron Heating
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