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2 PublicationsGas-dynamic density downramp injection in a beam-driven plasma wakefield accelerator
Couperus Cabadağ, J. P.; Pausch, R.; Schöbel, S.; Bussmann, M.; Chang, Y.-Y.; Corde, S.; Debus, A.; Ding, H.; Dopp, A.; Foerster, F. M.; Gilljohann, M.; Haberstroh, F.; Heinemann, T.; Hidding, B.; Karsch, S.; Köhler, A.; Kononenko, O.; Knetsch, A.; Kurz, T.; Martinez De La Ossa, A.; Nutter, A.; Raj, G.; Steiniger, K.; Schramm, U.; Ufer, P.; Irman, A.
Abstract
We present the experimental demonstration of density downramp injection at a gas-dynamic shock in a beam-driven plasma accelerator.
The ultrashort driver electron beam with a peak-current exceeding 10 kA allows operation in the blowout regime and enables injection of electron witness bunches at gentle density ramps, i.e. longer than the plasma wavelength, which nurtures prospects for ultralow bunch emittance.
By precision control over the position of injection we show that these bunches can be energy-tuned in acceleration gradients of near 120 GV/m.
Keywords: PWFA; LWFA; Downramp injection; Particle-in-cell; Particle acceleration in plasmas; Plasma-beam interactions; Novel acceleration methods; Beam-driven plasma acceleration
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Physical Review Research 3(2021), L042005
DOI: 10.1103/PhysRevResearch.3.L042005
Cited 14 times in Scopus -
Poster
13th International Particle Accelerator Conference (IPAC’22), 12.-17.06.2022, Bangkok, Thailand
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