ArticleScientific reports2017
A tunable electron beam source using trapping of electrons in a density down-ramp in laser wakefield acceleration.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Tailoring electron bunch quality in laser-plasma acceleration: a comparative study of Bessel-Gaussian and Gaussian laser profiles under variable plasma density geometries.Scientific reports · 2026Article
- Ultra-high-brightness and tuneable attosecond-long electron beams with the laser wake field acceleration.Scientific reports · 2025Article
- Laser based 100 GeV electron acceleration scheme for muon production.Scientific reports · 2025Article
- Generation of highly stable electron beam via the control of hydrodynamic instability.Scientific reports · 2024Article
- The effect of laser pulse evolution on down-ramp injection in laser wakefield accelerators.Scientific reports · 2024Article
- Transverse oscillating bubble enhanced laser-driven betatron X-ray radiation generation.Scientific reports · 2022Article
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Authors and funding
5 authors.
Funding
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Abstract
One challenge in the development of laser wakefield accelerators is to demonstrate sufficient control and reproducibility of the parameters of the generated bunches of accelerated electrons. Here we report on a numerical study, where we demonstrate that trapping using density down-ramps allows for tuning of several electron bunch parameters by varying the properties of the density down-ramp. We show that the electron bunch length is determined by the difference in density before and after the ramp. Furthermore, the transverse emittance of the bunch is controlled by the steepness of the ramp. Finally, the amount of trapped charge depends both on the density difference and on the steepness of the ramp. We emphasize that both parameters of the density ramp are feasible to vary experimentally. We therefore conclude that this tunable electron accelerator makes it suitable for a wide range of applications, from those requiring short pulse length and low emittance, such as the free-electron lasers, to those requiring high-charge, large-emittance bunches to maximize betatron X-ray generation.
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Registered trials
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