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DOE OSTI · 1527360

Convergence in nonlinear laser wakefield accelerators modeling in a Lorentz-boosted frame

Lee, P.·Vay, J. -L.
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Abstract

Laser wakefield acceleration modeling using the Lorentz-boosted frame technique in the particle-in-cell code has demonstrated orders of magnitude speedups. A convergence study was previously conducted in cases with external injection in the linear regime and without injection in the nonlinear regime, and the obtained results have shown a convergence within the percentage level. Here, a convergence study is carried out to model electron self-injection in a 2D–3V configuration. It is observed that the Lorentz-boosted frame technique is capable of modeling complex particle dynamics with a significant speedup. This result is crucial to curtail the computational time of the modeling of future chains of laser wakefield accelerator stages with high accuracy.

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Lee, P., Vay, J. -L.. 2019-12-31. Convergence in nonlinear laser wakefield accelerators modeling in a Lorentz-boosted frame. https://doi.org/10.1016/j.cpc.2018.12.013

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