Ionization injection in a laser wakefield accelerator subject to a transverse magnetic field
Zhao, Q and Weng, S M and Sheng, Z M and Chen, M and Zhang, G B and Mori, W B and Hidding, B and Jaroszynski, D A and Zhang, J (2018) Ionization injection in a laser wakefield accelerator subject to a transverse magnetic field. New Journal of Physics, 20. 063031. ISSN 1367-2630 (https://doi.org/10.1088/1367-2630/aac926)
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Abstract
The effect of an external transverse magnetic field on ionization injection of electrons in a laser wakefield accelerator (LWFA) is investigated by theoretical analysis and particle-in-cell simulations. On application of a few tens of Tesla magnetic field, both the electron trapping condition and the wakefield structure changes significantly such that injection occurs over a shorter distance and at an enhanced rate. Furthermore, beam loading is compensated for, as a result of the intrinsic trapezoidal-shaped longitudinal charge density profile of injected electrons. The nonlinear ionization injection and consequent compensation of beam loading lead to a reduction in the energy spread and an enhancement of both the charge and final peak energy of the electron beam from a LWFA immersed in the magnetic field.
ORCID iDs
Zhao, Q, Weng, S M, Sheng, Z M
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Item type: Article ID code: 64228 Dates: DateEvent20 June 2018Published31 May 2018Accepted6 February 2018SubmittedSubjects: Science > Physics Department: Faculty of Science > Physics
Technology and Innovation Centre > Advanced Science and TechnologyDepositing user: Pure Administrator Date deposited: 05 Jun 2018 13:59 Last modified: 02 Feb 2025 14:27 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/64228