Current reflux from an electron beam transmitted in a plasma ion channel

2021 ◽  
Vol 28 (1) ◽  
pp. 013508
Author(s):  
Yuxi Xia ◽  
Shengpeng Yang ◽  
Shaoyong Chen ◽  
Changjian Tang
Keyword(s):  
Electron Beam ◽  
Ion Channel

scholarly journals Ion-channel laser growth rate and beam quality requirements

2018 ◽  
Vol 84 (3) ◽  
Author(s):  
X. Davoine ◽  
F. Fiúza ◽  
R. A. Fonseca ◽  
W. B. Mori ◽  
L. O. Silva
Keyword(s):  
Growth Rate ◽  
Electron Beam ◽  
Ion Channel ◽  
Beam Quality ◽  
Three Dimensional ◽  
Quality Requirements ◽  
Particle In Cell ◽  
Theoretical Predictions ◽  
First Time ◽  
Wakefield Accelerator

In this paper, we determine the growth rate of the exponential radiation amplification in the ion-channel laser, where a relativistic electron beam wiggles in a focusing ion channel that can be created in a wakefield accelerator. For the first time the radiation diffraction, which can limit the amplification, is taken into account. The electron beam quality requirements to obtain this amplification are also presented. It is shown that both the beam energy and wiggler parameter spreads should be limited. Two-dimensional and three-dimensional particle-in-cell simulations of the self-consistent ion-channel laser confirm our theoretical predictions.

Coupling Instability of a Warm Relativistic Electron Beam with Ion-Channel Guiding

2019 ◽  
Vol 71 (10) ◽  
pp. 1236
Author(s):  
A. Rostami ◽  
K. Hajisharifi ◽  
H. Mehdian ◽  
A. Hasanbeigi
Keyword(s):  
Electron Beam ◽  
Ion Channel ◽  
Relativistic Electron ◽  
Relativistic Electron Beam

Experiment on the electromagnetic radiation excited in an electron beam-ion channel system

2019 ◽  
Vol 59 (8) ◽  
pp. e201900035
Author(s):  
Shengpeng Yang ◽  
Yuxi Xia ◽  
Changjian Tang ◽  
Shaoyong Chen ◽  
Jun Cheng ◽  
...  
Keyword(s):  
Electron Beam ◽  
Ion Channel ◽  
Electromagnetic Radiation ◽  
Channel System

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.

Relativistic Raman backscattering in an electron beam with ion-channel guiding and its application in free-electron laser

2005 ◽  
Vol 12 (11) ◽  
pp. 113106 ◽  
Author(s):  
A. A. Kordbacheh ◽  
B. Maraghechi ◽  
B. Farokhi ◽  
J. E. Willett
Keyword(s):  
Electron Beam ◽  
Ion Channel ◽  
Free Electron ◽  
Free Electron Laser

Dispersion characteristics of the electromagnetic waves in a relativistic electron beam guided by the ion channel

2010 ◽  
Vol 17 (5) ◽  
pp. 053106 ◽  
Author(s):  
Saeed Mirzanejhad ◽  
Farshad Sohbatzadeh ◽  
Maede Ghasemi ◽  
Zeinab Sedaghat ◽  
Zeinab Mahdian
Keyword(s):  
Electron Beam ◽  
Ion Channel ◽  
Relativistic Electron ◽  
Electromagnetic Waves ◽  
Relativistic Electron Beam ◽  
Dispersion Characteristics
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