Kinetic analysis of space-charge wave effects of a helical relativistic electron beam on the cyclotron maser instability

1992 ◽  
Author(s):  
Chiping Chen ◽  
Bruce G. Danly ◽  
Gennady Shvets ◽  
Jonathan S. Wurtele
Keyword(s):  
Electron Beam ◽  
Space Charge ◽  
Kinetic Analysis ◽  
Relativistic Electron ◽  
Relativistic Electron Beam ◽  
Cyclotron Maser ◽  
Wave Effects ◽  
Charge Wave ◽  
Space Charge Wave

Instability of electromagnetic waves with radial polarization in a rotating relativistic electron beam guided by ion channel

2011 ◽  
Vol 78 (1) ◽  
pp. 25-31 ◽  
Author(s):  
SAEED MIRZANEJHAD ◽  
FARSHAD SOHBATZADEH ◽  
ZAHRA HEIDARI
Keyword(s):  
Electron Beam ◽  
Ion Channel ◽  
Relativistic Electron ◽  
Electromagnetic Waves ◽  
Relativistic Electron Beam ◽  
Radial Polarization ◽  
High Intensity Laser ◽  
Charge Wave ◽  
Intensity Laser ◽  
Space Charge Wave

AbstractDispersion characteristics of electromagnetic waves with radial and azimuthal polarization in a rotating relativistic electron beam guided by an ion channel are investigated. Ion-channel electrostatic field and self-fields of relativistic electron beam were included in the formalism. It is shown that the wave with radial polarization is unstable in two regions due to coupling with fast space charge wave. The behaviors of the instability magnitude and spread are analyzed as a function of equilibrium parameters. The introduced instability can be used for amplification and production of high-intensity laser pulse with radial polarization.

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