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arXiv · 1802.05128

Simulation design for forthcoming high quality plasma wakefield acceleration experiment in linear regime at SPARC_LAB

Stefano Romeo·Enrica Chiadroni·Michele Croia·Massimo Ferrario·Anna Giribono·Alberto Marocchino·Francesco Mira·Riccardo Pompili·Andrea Renato Rossi·Cristina Vaccarezza
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Abstract

In the context of plasma wakefield acceleration beam driven, we exploit a high density charge trailing bunch whose self-fields act by mitigating the energy spread increase via beam loading compensation, together with bunch self-contain operated by the self-consistent transverse field. The work, that will be experimentally tested in the SPARC_LAB test facility, consists of a parametric scan that allows to find optimized parameters in order to preserve the high quality of the trailing bunch over the entire centimeters acceleration length, with a final energy spread increase of 0.1% and an emittance increase of 5 nm. The stability of trailing bunch parameters after acceleration is tested employing a systematic scan of the parameters of the bunches at the injection. The results show that the energy spread increase keeps lower than 1% and the emittance increase is lower than 0.02 mm mrad in all the simulations performed. The energy jitter is of the order of 5%.

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Stefano Romeo, Enrica Chiadroni, Michele Croia, Massimo Ferrario, Anna Giribono, Alberto Marocchino, Francesco Mira, Riccardo Pompili, Andrea Renato Rossi, Cristina Vaccarezza. 2018-02-14. Simulation design for forthcoming high quality plasma wakefield acceleration experiment in linear regime at SPARC_LAB. https://doi.org/10.1016/j.nima.2018.02.081

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