scholarly journals On the mechanism of surface roughness wake field excitation

2002 ◽  
Author(s):  
S. Ratschow ◽  
T. Weiland ◽  
M. Timm
Keyword(s):  
Surface Roughness ◽  
Wake Field ◽  
Field Excitation

scholarly journals Plasma wake-field excitation by relativistic electron bunches and charged particle acceleration in the presence of external magnetic field

2001 ◽  
Vol 19 (4) ◽  
pp. 597-604 ◽  
Author(s):  
V.A. BALAKIREV ◽  
V.I. KARAS' ◽  
I.V. KARAS' ◽  
V.D. LEVCHENKO
Keyword(s):  
Magnetic Field ◽  
Relativistic Electron ◽  
Magnetoactive Plasma ◽  
High Amplitude ◽  
Plasma Dynamics ◽  
Wake Field ◽  
Electron Bunches ◽  
Plasma Bunch ◽  
Field Excitation ◽  
Wake Fields

High-amplitude plasma wake waves are excited by high-density relativistic electron bunches (REB) moving in a plasma. The wake-fields can be used to accelerate charged particles, to serve as electrostatic wigglers in plasma free-electron lasers (FEL), and also can find many other applications. The electromagnetic fields in the region occupied by the bunch control the dynamics of the bunch itself. This paper presents the results of 2.5-dimensional numerical simulation of the modulation of a long REB in a plasma, the excitation of wake-fields by bunches in a plasma, in particular, in magnetoactive plasma. The previous one-dimensional study has shown that the density-profile modulation of a long bunch moving in plasma results in the growth of the coherent wake-wave amplitude. The bunch modulation occurs at the plasma frequency. The present study is concerned with the REB motion, taking into account the plasma and REB nonlinearities. It is demonstrated that the nonlinear REB/plasma dynamics exerts primary effect on both the REB self-modulation and the wake-field excitation by the bunches formed. We have demonstrated that a multiple excess of the accelerated bunch energy εmax over the energy of the exciting REB is possible in a magnetoactive plasma for a certain relationship between the parameters of the “plasma–bunch–magnetic field” system (owing to a hybrid volume–surface character of REB-excited wake-fields).

Electromagnetic wake-field due to surface roughness in an optical structure

2004 ◽  
Vol 95 (8) ◽  
pp. 4415-4426 ◽  
Author(s):  
S. Banna ◽  
D. Schieber ◽  
L. Schächter
Keyword(s):  
Surface Roughness ◽  
Wake Field ◽  
Optical Structure

3D Analysis of Wake Field Excitation in a Dielectric Loaded Rectangular Resonator

2006 ◽  
Author(s):  
Gennadij V. Sotnikov ◽  
Ivan N. Onishchenko ◽  
Thomas C. Marshall
Keyword(s):  
3D Analysis ◽  
Wake Field ◽  
Field Excitation
Sign in / Sign up

Export Citation Format

Share Document