Controlled density-downramp injection in a beam-driven plasma wakefield accelerator
Accelerator Physics
2021-10-13 v3 Plasma Physics
Abstract
This paper describes the utilization of beam-driven plasma wakefield acceleration to implement a high-quality plasma cathode via density-downramp injection in a short injector stage at the FLASHForward facility at DESY. Electron beams with charge of up to 105 pC and energy spread of a few percent were accelerated by a tunable effective accelerating field of up to 2.7 GV/m. The plasma cathode was operated drift-free with very high injection efficiency. Sources of jitter, the emittance and divergence of the resulting beam were investigated and modeled, as were strategies for performance improvements that would further increase the wide-ranging applications for a plasma cathode with the demonstrated operational stability
Cite
@article{arxiv.2007.12639,
title = {Controlled density-downramp injection in a beam-driven plasma wakefield accelerator},
author = {Alexander Knetsch and Bridget Sheeran and Lewis Boulton and Pardis Niknejadi and Kristjan Põder and Lucas Schaper and Ming Zeng and Simon Bohlen and Gregory Boyle and Theresa Brümmer and James Chappell and Richard D'Arcy and Severin Diederichs and Brian Foster and Matthew James Garland and Pau Gonzalez Caminal and Bernhard Hidding and Vladislav Libov and Carl Andreas Lindstrøm and Alberto Martinez de la Ossa and Martin Meisel and Trupen Parikh and Bernhard Schmidt and Sarah Schröder and Gabriele Tauscher and Stephan Wesch and Paul Winkler and Jonathan Wood and Jens Osterhoff},
journal= {arXiv preprint arXiv:2007.12639},
year = {2021}
}
Comments
11 pages, 9 figures