Experimental study of wakefields driven by a self-modulating proton bunch in 
plasma

Turner, M.; Collboration, The AWAKE

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Experimental study of wakefields driven by a self-modulating proton bunch in plasma

Turner, M., & Collboration, T. A. (2020). Experimental study of wakefields driven by a self-modulating proton bunch in plasma. Physical Review Accelerators and Beams, 23, 081302. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2020-242.

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Datensatz-Permalink: https://hdl.handle.net/21.11116/0000-0008-1BC5-C Versions-Permalink: https://hdl.handle.net/21.11116/0000-0008-1BC6-B

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Urheber:
Turner, M.¹, Autor
Collboration, The AWAKE¹, Autor

Affiliations:
1Max Planck Institute for Physics, Max Planck Society and Cooperation Partners, ou_2253650

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Schlagwörter: AWAKE

Zusammenfassung: We study experimentally the longitudinal and transverse wakefields driven by a highly relativistic proton bunch during self-modulation in plasma. We show that the wakefields’ growth and amplitude increase with increasing seed amplitude as well as with the proton bunch charge in the plasma. We study transverse wakefields using the maximum radius of the proton bunch distribution measured on a screen downstream from the plasma. We study longitudinal wakefields by externally injecting electrons and measuring their final energy. Measurements agree with trends predicted by theory and numerical simulations and validate our understanding of the development of self-modulation. Experiments were performed in the context of the Advanced Wakefield Experiment (AWAKE).