Excitation of ion cyclotron waves by a spiraling ion beam in a magnetized dusty plasma cylinder

2010 ◽  
Vol 17 (4) ◽  
pp. 043704 ◽  
Author(s):  
Suresh C. Sharma ◽  
Jyotsna Sharma
Keyword(s):  
Dusty Plasma ◽  
Ion Beam ◽  
Plasma Cylinder ◽  
Magnetized Dusty Plasma ◽  
Ion Cyclotron Waves ◽  
Ion Cyclotron

Spiraling ion beam driven electrostatic ion cyclotron wave instabilities in collisionless dusty plasma

2014 ◽  
Vol 32 ◽  
pp. 1460352
Author(s):  
Shatendra Sharma ◽  
Jyotsna Sharma
Keyword(s):  
Growth Rate ◽  
Dusty Plasma ◽  
Ion Beam ◽  
Density Ratio ◽  
Beam Current ◽  
Charged Dust ◽  
Magnetized Dusty Plasma ◽  
Ion Cyclotron Waves ◽  
Ion Cyclotron ◽  
The One

The numerical calculations of the growth rate in long parallel wavelength are made for a spiraling ion beam propagating through a collision less magnetized dusty plasma cylinder that drives electrostatic ion cyclotron waves to instability via cyclotron interaction. It is found that the growth rate of the instability of the electrostatic ion cyclotron waves increase in the long parallel limit with the density ratio of negatively charged dust grains to electrons. The growth rate of the unstable mode has the maximum value for the modes whose Eigen functions peak at the location of the beam and varies as the one-third power of the beam current in both the limits.

Excitation of ion-cyclotron waves by a spiralling ion beam in a plasma cylinder

1993 ◽  
Vol 50 (2) ◽  
pp. 331-338 ◽  
Author(s):  
S. C. Sharma ◽  
V. K. Tripathi
Keyword(s):  
Growth Rate ◽  
Energy Transfer ◽  
Beam Energy ◽  
Cyclotron Frequency ◽  
Ion Beam ◽  
Harmonic Number ◽  
Plasma Cylinder ◽  
Higher Harmonics ◽  
Ion Cyclotron Waves ◽  
Ion Cyclotron

A helical ion beam propagating through a plasma cylinder drives electrostatic ion-cyclotron waves to instability via cyclotron interaction. Higher harmonics of the beam cyclotron frequency can be generated in this way. The growth rate increases with the harmonic number. The efficiency of beam energy transfer to the wave can be of the order of a few per cent.

Ion beam driven ion-cyclotron waves in a plasma cylinder with negative ions

2001 ◽  
Vol 8 (3) ◽  
pp. 679-686 ◽  
Author(s):  
Suresh C. Sharma ◽  
M. P. Srivastava
Keyword(s):  
Ion Beam ◽  
Negative Ions ◽  
Plasma Cylinder ◽  
Ion Cyclotron Waves ◽  
Ion Cyclotron

Ion beam driven resonant ion-cyclotron instability in a magnetized dusty plasma

2014 ◽  
Vol 21 (3) ◽  
pp. 033701 ◽  
Author(s):  
Ved Prakash ◽  
Suresh C. Sharma ◽  
Vijayshri ◽  
Ruby Gupta
Keyword(s):  
Dusty Plasma ◽  
Ion Beam ◽  
Magnetized Dusty Plasma ◽  
Cyclotron Instability ◽  
Ion Cyclotron

Ion beam excitation of ion-cyclotron waves and ion heating in plasmas with drifting ions

1978 ◽  
Vol 19 (2) ◽  
pp. 237-252 ◽  
Author(s):  
J. P. Hauck ◽  
H. Böhmer ◽  
N. Rynn ◽  
Gregory Benford
Keyword(s):  
Magnetic Field ◽  
Ion Beam ◽  
Ion Beams ◽  
Ion Heating ◽  
Ion Cyclotron Waves ◽  
Diffusion Effects ◽  
Ion Cyclotron ◽  
Cyclotron Mode ◽  
The Magnetic Field ◽  
Beam Excitation

Ion-cyclotron waves are excited by cesium and potassium ion beams in cesium and potassium Q-machine plasmas. The ion beams are injected along the magnetic field with care to avoid beam transverse velocities. The observed ion-cyclotron mode frequencies are below those driven by electron currents. These resonant instabilities are convective in character with small spatial growth rates ki/kr ≃ 0.05. Plasma ion heating is observed and is consistent with a model in which mode amplitudes are saturated by diffusion effects.

Ion beam expansion due to ion cyclotron wave interactions

1979 ◽  
Vol 21 (1) ◽  
pp. 19-25 ◽  
Author(s):  
J. P. Hauck ◽  
Gregory Benford
Keyword(s):  
Magnetic Field ◽  
Diffusion Process ◽  
Ion Beam ◽  
Radial Expansion ◽  
Wave Interactions ◽  
Beam Spreading ◽  
Ion Cyclotron Waves ◽  
Ion Cyclotron ◽  
Guide Magnetic Field

We observe radial expansion of an ion beam propagating along a homogeneous guide magnetic field. The beam spreading appears to arise from interactions with beam-excited resonant ion cyclotron waves. Magnitude and scaling of the expansion agree with a theory based on a resonant diffusion process.

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