Investigation of electron beam parameters in laser wakefield acceleration using skewed laser pulse and external magnetic field
Sign Up to like & getrecommendations! Published in 2021 at "Current Applied Physics"
DOI: 10.1016/j.cap.2021.03.003
Abstract: Abstract We investigate the parameters of accelerated electron bunch in laser wakefield acceleration (LWFA), when a skewed laser pulse propagates through a plasma in the presence of a transverse magnetic field. Two dimensional particle-in-cell (2D-PIC)… read more here.
Keywords: field; laser wakefield; magnetic field; wakefield acceleration ... See more keywords
Performance improvement of a 200TW/1Hz Ti:sapphire laser for laser wakefield electron accelerator
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2020.106453
Abstract: Abstract For investigations on laser wakefield electron acceleration, there is a strong demand for driving laser exhibiting high stability and good spatial-temporal quality. Here we present an upgraded 200TW/1Hz Ti:sapphire laser with following key characteristics.… read more here.
Keywords: laser; wakefield electron; 1hz sapphire; laser wakefield ... See more keywords
All-optical $\unicode[STIX]{x1D707}^{-}$ acceleration in the laser wakefield
Sign Up to like & getrecommendations! Published in 2018 at "High Power Laser Science and Engineering"
DOI: 10.1017/hpl.2018.65
Abstract: Muons produced by the Bethe–Heitler process from laser wakefield accelerated electrons interacting with high $Z$ materials have velocities close to the laser wakefield. It is possible to accelerate those muons with laser wakefield directly. Therefore… read more here.
Keywords: laser; energy; acceleration; laser wakefield ... See more keywords
Automation and control of laser wakefield accelerators using Bayesian optimization
Sign Up to like & getrecommendations! Published in 2020 at "Nature Communications"
DOI: 10.1038/s41467-020-20245-6
Abstract: Laser wakefield accelerators promise to revolutionize many areas of accelerator science. However, one of the greatest challenges to their widespread adoption is the difficulty in control and optimization of the accelerator outputs due to coupling… read more here.
Keywords: laser; wakefield accelerators; automation control; optimization ... See more keywords
Electron energy increase in a laser wakefield accelerator using up-ramp plasma density profiles
Sign Up to like & getrecommendations! Published in 2019 at "Scientific Reports"
DOI: 10.1038/s41598-019-47677-5
Abstract: The phase velocity of the wakefield of a laser wakefield accelerator can, theoretically, be manipulated by shaping the longitudinal plasma density profile, thus controlling the parameters of the generated electron beam. We present an experimental… read more here.
Keywords: energy; density profiles; laser wakefield; wakefield accelerator ... See more keywords
Simulation study of the sub-terawatt laser wakefield acceleration operated in self-modulated regime
Sign Up to like & getrecommendations! Published in 2018 at "Physics of Plasmas"
DOI: 10.1063/1.5009958
Abstract: Laser wakefield acceleration (LWFA) can be accomplished by introducing a sub-terawatt (TW) laser pulse into a thin, high-density gas target. In this way, the self-focusing effect and the self-modulation that happened on the laser pulse… read more here.
Keywords: laser; sub terawatt; terawatt laser; laser wakefield ... See more keywords
Accurate single-shot measurement technique for the spectral distribution of GeV electron beams from a laser wakefield accelerator
Sign Up to like & getrecommendations! Published in 2019 at "AIP Advances"
DOI: 10.1063/1.5117311
Abstract: We present a technique, based on a dipole magnet spectrometer containing multiple scintillation screens, to accurately characterize the spectral distribution of a GeV electron beam generated by laser wakefield acceleration (LWFA). An optimization algorithm along… read more here.
Keywords: technique; gev; shot; electron beams ... See more keywords
Highly efficient few-cycle laser wakefield electron accelerator
Sign Up to like & getrecommendations! Published in 2021 at "Plasma Physics and Controlled Fusion"
DOI: 10.1088/1361-6587/abf80d
Abstract: A significant part of the laser wakefield acceleration (LWFA) research effort focuses on studying high-energy, quasi-monoenergetic electron beams. For other applications, such as the production and application of intense betatron x-ray radiation, Bremsstrahlung γ-rays and… read more here.
Keywords: plasma; laser; laser wakefield; cycle laser ... See more keywords
Effects of the dopant concentration in laser wakefield and direct laser acceleration of electrons
Sign Up to like & getrecommendations! Published in 2018 at "New Journal of Physics"
DOI: 10.1088/1367-2630/aabe14
Abstract: In this work, we experimentally study the effects of the nitrogen concentration in laser wakefield acceleration of electrons in a gas mixture of hydrogen and nitrogen. A 15 TW peak power laser pulse is focused… read more here.
Keywords: laser; acceleration; concentration laser; dopant concentration ... See more keywords
Parametric study of high-energy ring-shaped electron beams from a laser wakefield accelerator
Sign Up to like & getrecommendations! Published in 2021 at "New Journal of Physics"
DOI: 10.1088/1367-2630/ac3efd
Abstract: Laser wakefield accelerators commonly produce on-axis, low-divergence, high-energy electron beams. However, a high charge, annular shaped beam can be trapped outside the bubble and accelerated to high energies. Here we present a parametric study on… read more here.
Keywords: energy; parametric study; electron beams; ring shaped ... See more keywords
Observation of transverse injection and enhanced beam quality in laser wakefield acceleration of isolated electron bunches using an optimized plasma waveguide.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.105.065210
Abstract: The laser wakefield acceleration of monoenergetic multi-GeV electron beams in the bubble regime is investigated via particle-in-cell simulations considering laser guiding of sub-petawatt pulses by an optimized plasma waveguide. The density profile of the plasma… read more here.
Keywords: injection; density; laser; electron ... See more keywords