2024/04/22 by John Farmer, Farmer, John P., G. Zevi Della Porta +1
Engineering · #Accelerator Physics (physics.acc-ph) #FOS: Physical sciences #Ion-surface interactions and analysis #Plasma Physics (physics.plasm-ph)
paper · pdf · doi:10.48550/arxiv.2404.14175
openalex publication_date 2024/04/22 · openalex created_date 2024/04/24 · openalex updated_date 2026/07/28
Plasma wakefields offer high acceleration gradients, orders of magnitude larger than conventional RF accelerators. However, the achievable luminosity remains relatively low, typically limited by repetition rate and the charge accelerated per shot. In this work, we show that a train of drive bunches can be harnessed to accelerate multiple witness bunches in a single shot. We demonstrate that periodically loading the wakefields removes the limit on the energy transfer from the drive beam to the plasma, which allows the luminosity to be increased. Proof-of-concept simulations for the AWAKE scheme are carried out to demonstrate the technique, achieving a doubling of the accelerated charge while exploiting only a fraction of the drive train.