Fig. 5: Positron acceleration with a DMP in simulations. | Communications Physics

Fig. 5: Positron acceleration with a DMP in simulations.

From: Sub-per-mille bunch energy spread in a quasi-linear laser-wakefield accelerator via periodical de-chirpings

Fig. 5

Snapshots of the electron density distribution in (a–d), longitudinal accelerating and transverse focusing fields in (e–h) of the wake experienced by the positron bunch while using a DMP. i Evolution of the peak energy (black) and AES (blue) of the positron bunch. j The resulted energy spread and energy gain as a function of the beam charge for the GeV-energy positron acceleration.

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