Dispersion characteristics and excitation of space-charge and cyclotron modes in inhomogeneous warm plasma waveguide

2018 ◽  
Vol 92 (12) ◽  
pp. 1629-1641 ◽  
Author(s):  
H. Rajabalinia-Jelodar ◽  
M. K. Salem ◽  
F. M. Aghamir ◽  
H. Zakeri-Khatir
Keyword(s):  
Space Charge ◽  
Plasma Waveguide ◽  
Dispersion Characteristics ◽  
Warm Plasma

Space-charge waves in a coaxial plasma waveguide

1998 ◽  
Vol 5 (1) ◽  
pp. 273-278 ◽  
Author(s):  
Un-Hak Hwang ◽  
Joseph E. Willett ◽  
Hassan Mehdian
Keyword(s):  
Space Charge ◽  
Plasma Waveguide ◽  
Space Charge Waves

Quantum Space Charge Waves in a Waveguide Filled with Fermi-Dirac Plasmas Including Relativistic Wake Field and Quantum Statistical Pressure Effects

2018 ◽  
Vol 73 (4) ◽  
pp. 295-301 ◽  
Author(s):  
Woo-Pyo Hong ◽  
Young-Dae Jung
Keyword(s):  
Space Charge ◽  
Plasma Waveguide ◽  
Wave Number ◽  
Beam Instability ◽  
Quantum Space ◽  
Instability Domain ◽  
Wake Field ◽  
Beam Velocity ◽  
Resonant Beam ◽  
Quantum Statistical

AbstractThe effects of quantum statistical degeneracy pressure on the propagation of the quantum space charge wave are investigated in a cylindrically bounded plasma waveguide filled with relativistically degenerate quantum Fermi-Dirac plasmas and the relativistic ion wake field. The results show that the domain of the degenerate parameter for the resonant beam instability significantly increases with an increase of the scaled beam velocity. It is found that the instability domain of the wave number increases with an increase of the degenerate parameter. It is also found that the growth rate for the resonant beam instability decreases with an increase of the degenerate parameter. In addition, it is shown that the lowest harmonic mode provides the maximum value of the growth rates. Moreover, it is shown that the instability domain of the wave number decreases with an increase of the beam velocity.

scholarly journals Growth rates of space-charge waves in a Lorentzian plasma waveguide

2017 ◽  
Vol 4 (1) ◽  
pp. 4-8
Author(s):  
Myoung-Jae Lee ◽  
◽  
Young-Dae Jung ◽  
Keyword(s):  
Space Charge ◽  
Growth Rates ◽  
Plasma Waveguide ◽  
Space Charge Waves

Space-charge waves in a relativistic electron beam with ion-channel guiding

2010 ◽  
Vol 77 (3) ◽  
pp. 419-429 ◽  
Author(s):  
SAEED MIRZANEJHAD ◽  
BEHROUZ MARAGHECHI ◽  
FARSHAD SOHBATZADEH ◽  
IMAN KAMEL-JAHROMI
Keyword(s):  
Electron Beam ◽  
Eigenvalue Problem ◽  
Ion Channel ◽  
Space Charge ◽  
Relativistic Electron ◽  
Relativistic Electron Beam ◽  
Field Energy ◽  
Dispersion Characteristics ◽  
Perfect Agreement ◽  
Space Charge Waves

AbstractSpace-charge waves in a relativistic electron beam that completely fills a cylindrical metallic waveguide and is guided by an ion channel are analyzed numerically. Equilibrium consists of a uniform and rigid rotation without betatron oscillations. Using cold fluid equations a differential equation and boundary conditions are derived that constitute an eigenvalue problem. This eigenvalue problem is solved, numerically, with the finite difference scheme using shooting method. Dispersion characteristics and electrostatic potential structures of azimuthally symmetric and nonsymmetric space-charge waves are studied. Perfect agreement with analytical results at asymptotic limit of zero axial velocity is found. It was found that relativistic effects modify the dispersion characteristics of the space-charge waves considerably and can concentrate the electric field energy of the wave into a thin and small shell around the axis.

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