scholarly journals Nonlinear ion-acoustic waves supported by an ion beam

2007 ◽  
Vol 112 (A6) ◽  
pp. n/a-n/a ◽  
Author(s):  
L. Gomberoff
Keyword(s):  
Acoustic Waves ◽  
Ion Beam ◽  
Ion Acoustic Waves ◽  
Ion Acoustic

Effects of a weak ion beam on grid-launched ion-acoustic waves

1985 ◽  
Vol 28 (6) ◽  
pp. 2016 ◽  
Author(s):  
Santwana Raychaudhuri ◽  
Karl E. Lonngren
Keyword(s):  
Acoustic Waves ◽  
Ion Beam ◽  
Ion Acoustic Waves ◽  
Ion Acoustic

Ion beam driven ion-acoustic waves in a plasma cylinder with negatively charged dust grains

2012 ◽  
Vol 19 (7) ◽  
pp. 073706 ◽  
Author(s):  
Suresh C. Sharma ◽  
Kavita Sharma ◽  
Ritu Walia
Keyword(s):  
Acoustic Waves ◽  
Ion Beam ◽  
Charged Dust ◽  
Dust Grains ◽  
Ion Acoustic Waves ◽  
Plasma Cylinder ◽  
Ion Acoustic

Radiation characteristics of ion acoustic waves in a supersonic ion beam

1988 ◽  
Vol 30 (10) ◽  
pp. 1339-1343 ◽  
Author(s):  
R G Greaves ◽  
G P Zank ◽  
P J Barrett ◽  
J F McKenzie
Keyword(s):  
Acoustic Waves ◽  
Ion Beam ◽  
Ion Acoustic Waves ◽  
Radiation Characteristics ◽  
Ion Acoustic

Solitons in ion-beam plasmas bounded by cylindrical geometry

1989 ◽  
Vol 67 (6) ◽  
pp. 609-613 ◽  
Author(s):  
G. C. Das ◽  
KH. Ibohanbi Singh ◽  
B. Karmakar
Keyword(s):  
Solitary Waves ◽  
Acoustic Waves ◽  
Ion Beam ◽  
Ion Beams ◽  
Cylindrical Geometry ◽  
Ion Acoustic Waves ◽  
Ion Acoustic Solitary Waves ◽  
Ion Acoustic ◽  
Bounded Plasma ◽  
Modifying Effect

Nonlinear ion-acoustic solitary waves are studied in a cylindrically bounded plasma consisting of ions and ion beams, along with multiple-temperature electrons, through the derivation of a Korteweg–deVries equation. The interaction of isothermality on the propagation of radially ingoing ion-acoustic waves in various plasmas exerts a drastic modifying effect on the existence and behaviour of the solitons. The results have been compared extensively with those available to date for planar, as well as spherical, solitons.

Reflection of ion-acoustic waves from bipolar potential structures

1989 ◽  
Vol 41 (2) ◽  
pp. 243-255 ◽  
Author(s):  
Y. Nakamura ◽  
Joyanti Chutia
Keyword(s):  
Acoustic Wave ◽  
Acoustic Waves ◽  
High Efficiency ◽  
Ion Beam ◽  
Plasma Potential ◽  
Ion Acoustic Waves ◽  
Ion Acoustic Wave ◽  
Plasma Device ◽  
Ion Acoustic ◽  
Double Plasma Device

Reflection of ion-acoustic waves from the ion sheath in front of the separation grid in a double-plasma device has been investigated experimentally. The plasma potential φ of the source plasma was controlled relative to that of the target plasma. When eφ < κΤe, where Τe is the electron temperature, no reflection was observed. The reason for this is that ions are drifting towards the grid with the Bohm velocity, i.e. the ion-acoustic velocity. When eφ > κΤe the reflected wave consists of the ion-acoustic wave and the ion beam mode. The reflection coefficient for the ion-acoustic wave is about unity. This high efficiency is due to reflection of the ions themselves.

Effects of a slow ion beam on ion-acoustic waves

2004 ◽  
Vol 11 (8) ◽  
pp. 3795-3800 ◽  
Author(s):  
Y. Nakamura ◽  
H. Bailung ◽  
R. Ichiki
Keyword(s):  
Acoustic Waves ◽  
Ion Beam ◽  
Ion Acoustic Waves ◽  
Ion Acoustic

scholarly journals Soliton Characteristics at the Critical Density of Negative Ions in Ion-beam Plasmas

1990 ◽  
Vol 43 (3) ◽  
pp. 319 ◽  
Author(s):  
GC Das ◽  
Kh lbohanbi Singh
Keyword(s):  
Solitary Waves ◽  
Acoustic Waves ◽  
Ion Beam ◽  
Perturbation Technique ◽  
Critical Density ◽  
Negative Ions ◽  
Ion Acoustic Waves ◽  
Multicomponent Plasma ◽  
Laboratory Plasmas ◽  
Ion Acoustic

By using the reductive perturbation technique, ion-acoustic waves are studied in a generalised multicomponent plasma. The multiple ions modify drastically the characteristics of the solitary waves. In particular, the negative ions have a critical density at which the nonlinearity of the Korteweg-deVries (K-dV) equation vanishes and the ion-acoustic solitary wave is seen to be described by a modified K-dV (mK-dV) equation. Using higher order nonlinearities, the non-uniform transition of the K-dV equation to the mK-dV equation along with the conservation of the Sagdeev potential is described. Theoretical observations on the existence of the solitary waves, as expected, could be of interest in laboratory plasmas

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