CERN Accelerating science

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Preprint
Report number arXiv:2412.12922
Title Development of self-modulation as a function of plasma length
Author(s) Clairembaud, Arthur (Munich, Max Planck Inst. ; Munich, Tech. U.) ; Turner, Marlene (CERN) ; Muggli, Patric (Munich, Max Planck Inst.)
Imprint 2024-12-17
Number of pages 13
Note 13 pages, 2 tables, 4 figures, AAC2024 Proceedings
Subject category physics.acc-ph ; Accelerators and Storage Rings ; physics.plasm-ph ; Other Fields of Physics
Abstract We use numerical simulations to determine whether the saturation length of the self-modulation (SM) instability of a long proton bunch in plasma could be determined by measuring the radius of the bunch halo SM produces. Results show that defocused protons acquire their maximum transverse momentum and exit the wakefields at a distance approximately equal to the saturation length of the wakefields. This suggests that measuring the radius of the halo as a function of plasma length in the AWAKE experiment would yield a very good estimate for the saturation length of SM.
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 Záznam vytvorený 2024-12-19, zmenený 2025-01-20


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