Comment on “Propagation of a TE surface mode in a relativistic electron beam–quantum plasma system” [Phys. Lett. A 376 (2012) 169]

2016 ◽  
Vol 380 (33) ◽  
pp. 2580-2581 ◽  
Author(s):  
Afshin Moradi
Keyword(s):  
Electron Beam ◽  
Relativistic Electron ◽  
Relativistic Electron Beam ◽  
Quantum Plasma ◽  
Surface Mode ◽  
Plasma System

scholarly journals Plasma expansion dynamics in the presence of a relativistic electron beam

2015 ◽  
Vol 33 (2) ◽  
pp. 273-277 ◽  
Author(s):  
El-Amine Benkhelifa ◽  
Mourad Djebli
Keyword(s):  
Electron Beam ◽  
Relativistic Electron ◽  
Relativistic Electron Beam ◽  
Relativistic Effects ◽  
Plasma Expansion ◽  
Plasma System ◽  
Local Charge ◽  
Ion Plasma ◽  
Non Local ◽  
Non Thermal Plasma

AbstractThe dynamics of an electron–ion plasma is studied when a mono-energetic relativistic electron beam penetrates the expanding plasma. Combined effects of thermal pressure and ambipolar electrostatic potential are considered for fully relativistic multi-fluids model where the quasi-neutrality assumption is used for a beam–plasma system. Relativistic effects are considered for both density and velocity of the beam fluid. Ion acceleration is depicted through a spike-like structure resulting from non-local charge separation and associated with the beak-down of quasi-neutrality. The beam initial speed is found to enhance the spike amplitude and change its position. Moreover, relativistic effects are particularly found significant for a non-thermal plasma.

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