scholarly journals Enabling Lorentz boosted frame particle-in-cell simulations of laser wakefield acceleration in quasi-3D geometry

2016 ◽  
Vol 316 ◽  
pp. 747-759 ◽  
Author(s):  
Peicheng Yu ◽  
Xinlu Xu ◽  
Asher Davidson ◽  
Adam Tableman ◽  
Thamine Dalichaouch ◽  
...  
Keyword(s):  
Laser Wakefield Acceleration ◽  
Particle In Cell ◽  
Wakefield Acceleration ◽  
3D Geometry ◽  
Laser Wakefield

scholarly journals Laser wakefield acceleration of electrons from a density-modulated plasma

2014 ◽  
Vol 32 (3) ◽  
pp. 449-454 ◽  
Author(s):  
D.N. Gupta ◽  
K. Gopal ◽  
I.H. Nam ◽  
V.V. Kulagin ◽  
H. Suk
Keyword(s):  
Magnetic Field ◽  
Electron Energy ◽  
Physical Mechanism ◽  
Laser Wakefield Acceleration ◽  
Theoretical Formulation ◽  
Particle In Cell ◽  
Phase Velocities ◽  
Wakefield Acceleration ◽  
Laser Wakefield ◽  
Density Modulation

AbstractThis research reports the increased electron energy gain from laser wakefield acceleration in density-modulated plasma with an external magnetic field. Periodic plasma density- modulation can excite higher harmonics of different phase velocities of fundamental wakefield that can assist in improving the self-trapping of pre-accelerated electrons to accelerate them for higher energy. Furthermore, the applied magnetic field assisted self-injection can also contribute in electron energy enhancement during the acceleration. The physical mechanism is described with a theoretical formulation for this scheme. Results of two-dimensional particle-in-cell simulations are reported to understand the proposed idea.

Simulations of efficient laser wakefield accelerators from 1 to 100GeV

2012 ◽  
Vol 78 (4) ◽  
pp. 401-412 ◽  
Author(s):  
M. TZOUFRAS ◽  
C. HUANG ◽  
J. H. COOLEY ◽  
F. S. TSUNG ◽  
J. VIEIRA ◽  
...  
Keyword(s):  
Critical Power ◽  
Plasma Channel ◽  
Plasma Medium ◽  
Laser Wakefield Acceleration ◽  
Weakly Nonlinear ◽  
Particle In Cell ◽  
Wakefield Acceleration ◽  
Self Focusing ◽  
Laser Wakefield ◽  
And Control

AbstractOptimization of laser wakefield acceleration involves understanding and control of the laser evolution in tenuous plasmas, the response of the plasma medium, and its effect on the accelerating particles. We explore these phenomena in the weakly nonlinear regime, in which the laser power is similar to the critical power for self-focusing. Using Particle-In-Cell simulations with the code QuickPIC, we demonstrate that a laser pulse can remain focused in a plasma channel for hundreds of Rayleigh lengths and efficiently accelerate a high-quality electron beam to 100GeV (25GeV) in a single stage with average gradient 3.6GV/m (7.2GV/m).

scholarly journals High-Density Dynamics of Laser Wakefield Acceleration from Gas Plasmas to Nanotubes

Photonics ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 216
Author(s):  
Bradley Scott Nicks ◽  
Ernesto Barraza-Valdez ◽  
Sahel Hakimi ◽  
Kyle Chesnut ◽  
Genevieve DeGrandchamp ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Critical Density ◽  
High Density ◽  
Laser Wakefield Acceleration ◽  
Particle In Cell ◽  
Wakefield Acceleration ◽  
Laser Wakefield ◽  
Sheath Formation ◽  
Laser Acceleration ◽  
Density Regime

The electron dynamics of laser wakefield acceleration (LWFA) is examined in the high-density regime using particle-in-cell simulations. These simulations model the electron source as a target of carbon nanotubes. Carbon nanotubes readily allow access to near-critical densities and may have other advantageous properties for potential medical applications of electron acceleration. In the near-critical density regime, electrons are accelerated by the ponderomotive force followed by the electron sheath formation, resulting in a flow of bulk electrons. This behavior represents a qualitatively distinct regime from that of low-density LWFA. A quantitative entropy index for differentiating these regimes is proposed. The dependence of accelerated electron energy on laser amplitude is also examined. For the majority of this study, the laser propagates along the axis of the target of carbon nanotubes in a 1D geometry. After the fundamental high-density physics is established, an alternative, 2D scheme of laser acceleration of electrons using carbon nanotubes is considered.

Complete characterization of laser wakefield acceleration

2011 ◽  
Author(s):  
Laszlo Veisz ◽  
Alexander Buck ◽  
Maria Nicolai ◽  
Karl Schmid ◽  
Chris M. S. Sears ◽  
...  
Keyword(s):  
Complete Characterization ◽  
Laser Wakefield Acceleration ◽  
Wakefield Acceleration ◽  
Laser Wakefield

Effect of halo on the stability of electron bunches in laser wakefield acceleration

2016 ◽  
Vol 113 (3) ◽  
pp. 34002 ◽  
Author(s):  
N. Nakanii ◽  
T. Hosokai ◽  
K. Iwasa ◽  
N. C. Pathak ◽  
S. Masuda ◽  
...  
Keyword(s):  
Laser Wakefield Acceleration ◽  
Electron Bunches ◽  
Wakefield Acceleration ◽  
Laser Wakefield ◽  
The Stability

GENERATION OF GOOD-QUALITY RELATIVISTIC ELECTRON BEAM FROM SELF-MODULATED LASER WAKEFIELD ACCELERATION

2007 ◽  
Vol 21 (03n04) ◽  
pp. 398-406 ◽  
Author(s):  
N. HAFZ ◽  
G. H. KIM ◽  
C. KIM ◽  
H. SUK
Keyword(s):  
Relativistic Electron ◽  
Energy Spread ◽  
Intense Laser ◽  
Laser Wakefield Acceleration ◽  
Nitrogen Gas ◽  
Laser Plasma Interaction ◽  
Wakefield Acceleration ◽  
Laser Wakefield ◽  
Central Energy ◽  
A Charge

A relativistic electron bunch with a large charge (~2 nC ) was produced from a self-modulated laser wakefield acceleration configuration. In this experiment, an intense laser pulse with a peak power of 2 TW and a duration of 700 fs was focused in a nitrogen gas jet, and multi-MeV electrons were observed from the strong laser-plasma interaction. By passing the electrons through a small pinhole-like collimator of cone f/70, we observed a narrowing in the electron beam's energy spread. The beam clearly showed a small energy-spread behavior with a central energy of 4.8 MeV and a charge of 115 pC. The acceleration gradient was estimated to be about 20 GeV/m.

Optical injection dynamics in two laser wakefield acceleration configurations

2018 ◽  
Vol 60 (6) ◽  
pp. 064009 ◽  
Author(s):  
Vojtěch Horný ◽  
Dominika Mašlárová ◽  
Václav Petržílka ◽  
Ondřej Klimo ◽  
Michaela Kozlová ◽  
...  
Keyword(s):  
Optical Injection ◽  
Laser Wakefield Acceleration ◽  
Wakefield Acceleration ◽  
Laser Wakefield
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