Speaker
Description
In the context of plasma wakefield acceleration, resonances can be exploited to generate large-amplitude wakefields, using a train of relativistic particle bunches with frequency content close to the plasma electron frequency, to accelerate a trailing bunch.
We show with experimental results and numerical simulations that the wakefields driven by individual successive bunches in overdense plasma superpose linearly, and that their amplitude increases along the train, under optimal coupling with plasma density oscillations. We also demonstrate that a train of bunches with increasing charge can be used to enhance the transformer ratio of the acceleration process, hence improving the energy transfer efficiency [1].
We will discuss future experiments to demonstrate the resonant scheme in the non-linear regime.
[1] L. Verra et al., Phys. Rev. E 112, 045205 (2025)
| Working group | WG3 |
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