Ionization injection in a laser wakefield accelerator subject to a transverse magnetic field

Zhao, Qian; Weng, Shangkun; Sheng, Z. M.; Chen, M; Zhang, G B; Mori, W. B.; Hidding, B.; Jaroszynski, D. A.; Zhang, J

doi:10.1088/1367-2630/aac926

Cited by 21 publications

(17 citation statements)

References 42 publications

(74 reference statements)

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“…Three-dimensional simulations of the effect of transverse magnetic field on wakefield excitation by linearly polarized laser pulse show that wakefield structure altered significantly and off-axis asymmetric injection of electrons into the wakefield occurred [45,46]. On the other hand, the transverse magnetic field relaxes the longitudinal trapping condition and modifies transverse trapping condition [47].…”

Section: Wakefield Excitation In a Magnetized Thin Plasma Slabmentioning

confidence: 99%

“…On the other hand, applying transverse external magnetic filed of a few hundreds of tesla leads to the reduction of injection threshold and controllable self-injection of electrons in laser wakefield acceleration [45,46]. Furthermore, transverse magnetic field of a few tens of tesla could be used for controlling ionization injection in laser wakefield acceleration [47].…”

Section: Introductionmentioning

confidence: 99%

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Effect of external magnetic field on wakefield generation in underdense plasma slab using backward semi-Lagrangian Vlasov code

Razavinia

Ghorbanalilu

2019

Phys. Rev. Accel. Beams

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Laser wakefield excitation in the interaction of femtosecond laser pulse with an underdense thin magnetized plasma slab is studied by one dimensional relativistic Vlasov-Maxwell system of equations. The interaction is modeled by relativistic Vlasov equation in propagation direction of laser pulse and fluid equations in transverse direction. Backward semi-Lagrangian method (BSL) is used for numerical solution of Vlasov equation. Generation of wakefields by a right and left handed circularly polarized (RCP) and (LCP) laser pulses in the interaction with nonmagnetized and magnetized plasma slab are examined and compared. Two directions are considered for external magnetic field, parallel and antiparallel to direction of laser pulse propagation. The results show that applying magnetic field along (opposite to) the propagation direction of RCP (LCP) laser pulse increases amplitude of density steepening and consequently wakefields amplitude, and mean kinetic energy of electrons compared with nonmagnetized plasma. The results are in complete agreement with previous analytical and numerical reports.

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Section: Wakefield Excitation In a Magnetized Thin Plasma Slabmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of external magnetic field on wakefield generation in underdense plasma slab using backward semi-Lagrangian Vlasov code

Razavinia

Ghorbanalilu

2019

Phys. Rev. Accel. Beams

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“…Zheng-Ming Sheng's research focuses on the theory and simulation of relativistic laser-plasma interactions, plasma-based particle accelerators and radiation sources relevant to the SCAPA experimental programmes and high-field studies for the next-generation lasers such as at the Extreme Light Infrastructure (ELI) and EPAC at the CLF. He and his co-workers have proposed several new injection schemes to control the beam quality in the LWFA, including ionization-controlled injection using two-colour lasers, density gradient controlled injection and magnetic field-controlled injection [200][201][202] . To reach teraelectronvolt energy levels of LWFA they developed a theory for coupling multiple-stage accelerators [203] .…”

Section: Research Activities Of the Silis Groupmentioning

confidence: 99%

A history of high-power laser research and development in the United Kingdom

Danson

White

Barr

et al. 2021

High Pow Laser Sci Eng

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The first demonstration of laser action in ruby was made in 1960 by T. H. Maiman of Hughes Research Laboratories, USA. Many laboratories worldwide began the search for lasers using different materials, operating at different wavelengths. In the UK, academia, industry and the central laboratories took up the challenge from the earliest days to develop these systems for a broad range of applications. This historical review looks at the contribution the UK has made to the advancement of the technology, the development of systems and components and their exploitation over the last 60 years.

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“…The next step in characterizing the B-III shaping technique is to derive its analytical framework and scaling-laws. It was shown in [30] that by adding an external transverse magnetic field to our configuration, the criteria for ideal beam loading were relaxed allowing more charge in the tailored injected beam. In the future, it will be interesting to test if the conclusions are valid for our particle beam driven PBA configuration.…”

Section: Conclusion and Future Directionmentioning

confidence: 99%

Shaping trailing beams for beam loading via beam-induced-ionization injection at FACET

Amorim

Vafaei-Najafabadi

Emma

et al. 2019

Phys. Rev. Accel. Beams

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Recent progress in plasma based accelerator technology has demonstrated its ability to deliver high energy (GeV) beams in compact structures (centimeter to meter scale plasmas). Current developments of that technology are oriented toward producing beams with quality and energy spread comparable to those obtained using standard accelerating structures. In plasma based accelerators, the beam energy spread can be improved during the acceleration process through beam loading. To achieve optimum beam loading, the beam has to be shaped such that the superposition of its space charge fields and plasma fields result in a uniform accelerating field. In this work we show how beam-induced-ionization injection can be used to shape and inject a trailing beam suitable for beam loading. Our particle-in-cell numerical simulations done with OSIRIS show the ionization injection of a shaped 340 pC, 13 kA and 3 μm long electron beam accelerated to 900 MeV in less than 3 cm of plasma. The configurations considered numerically were based on the beams and plasmas that have been and will be available at the FACET facility.

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Ionization injection in a laser wakefield accelerator subject to a transverse magnetic field

Cited by 21 publications

References 42 publications

Effect of external magnetic field on wakefield generation in underdense plasma slab using backward semi-Lagrangian Vlasov code

Effect of external magnetic field on wakefield generation in underdense plasma slab using backward semi-Lagrangian Vlasov code

A history of high-power laser research and development in the United Kingdom

Shaping trailing beams for beam loading via beam-induced-ionization injection at FACET

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