학술논문
Controlled density-downramp injection in a beam-driven plasma wakefield accelerator
Document Type
Working Paper
Author
Knetsch, Alexander; Sheeran, Bridget; Boulton, Lewis; Niknejadi, Pardis; Põder, Kristjan; Schaper, Lucas; Zeng, Ming; Bohlen, Simon; Boyle, Gregory; Brümmer, Theresa; Chappell, James; D'Arcy, Richard; Diederichs, Severin; Foster, Brian; Garland, Matthew James; Caminal, Pau Gonzalez; Hidding, Bernhard; Libov, Vladislav; Lindstrøm, Carl Andreas; de la Ossa, Alberto Martinez; Meisel, Martin; Parikh, Trupen; Schmidt, Bernhard; Schröder, Sarah; Tauscher, Gabriele; Wesch, Stephan; Winkler, Paul; Wood, Jonathan; Osterhoff, Jens
Source
Phys. Rev. Accel. Beams 24, 101302 (2021)
Subject
Language
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
Comment: 11 pages, 9 figures
Comment: 11 pages, 9 figures