Self-resonant plasma wake-field excitation by a laser pulse with a steep leading edge for particle acceleration

1995 ◽  
Vol 52 (5) ◽  
pp. 5327-5332 ◽  
Author(s):  
V. V. Goloviznin ◽  
P. W. van Amersfoort ◽  
N. E. Andreev ◽  
V. I. Kirsanov
Keyword(s):  
Particle Acceleration ◽  
Laser Pulse ◽  
Leading Edge ◽  
Wake Field ◽  
Field Excitation

scholarly journals Charged particle acceleration by an intense wake-field excited in plasmas by either laser pulse or relativistic electron bunch

2004 ◽  
Vol 22 (4) ◽  
pp. 383-392 ◽  
Author(s):  
V. A. BALAKIREV ◽  
I. V. KARAS‘ ◽  
V. I. KARAS‘ ◽  
V. D. LEVCHENKO ◽  
M. BORNATICI
Keyword(s):  
Charged Particle ◽  
Laser Pulse ◽  
Relativistic Electron ◽  
High Frequency ◽  
Electron Bunch ◽  
Experimental Studies ◽  
Wake Field ◽  
Acceleration Method ◽  
Field Excitation ◽  
New Generation

The results from theoretical and experimental studies, as well as from 2.5-dimensional (2.5-D) numerical simulation of plasma wake field excitation, by either relativistic electron bunch, laser pulse, and the charged particle wake field acceleration are discussed. The results of these investigations make it possible to evaluate the potentialities of the wake field acceleration method and to analyze whether it can serve as a basis for creating a new generation of devices capable of charged particle accelerating at substantially higher (on the order of two to three magnitudes) rates in comparison with those achievable in classical linear high-frequency (resonant) accelerators.

scholarly journals Coupling Effects in Multistage Laser Wake-field Acceleration of Electrons

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Zhan Jin ◽  
Hirotaka Nakamura ◽  
Naveen Pathak ◽  
Yasuo Sakai ◽  
Alexei Zhidkov ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Electron Beams ◽  
High Energy ◽  
Long Distance ◽  
Plasma Cathode ◽  
Particle In Cell ◽  
Wake Field ◽  
Spatial Coupling ◽  
Electron Bunches ◽  
A Charge

AbstractStaging laser wake-field acceleration is considered to be a necessary technique for developing full-optical jitter-free high energy electron accelerators. Splitting of the acceleration length into several technical parts and with independent laser drivers allows not only the generation of stable, reproducible acceleration fields but also overcoming the dephasing length while maintaining an overall high acceleration gradient and a compact footprint. Temporal and spatial coupling of pre-accelerated electron bunches for their injection in the acceleration phase of a successive laser pulse wake field is the key part of the staging laser-driven acceleration. Here, characterization of the coupling is performed with a dense, stable, narrow energy band of <3% and energy-selectable electron beams with a charge of ~1.6 pC and energy of ~10 MeV generated from a laser plasma cathode. Cumulative focusing of electron bunches in a low-density preplasma, exhibiting the Budker–Bennett effect, is shown to result in the efficient injection of electrons, even with a long distance between the injector and the booster in the laser pulse wake. The measured characteristics of electron beams modified by the booster wake field agree well with those obtained by multidimensional particle-in-cell simulations.

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).

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