%0 Conference Paper
%A Schröder, Sarah
%A Lindstroem, Carl Andreas
%A Bohlen, Simon
%A Boulton, Lewis
%A Boyle, Gregory James
%A D'Arcy, Richard
%A Ossa, Alberto de la
%A Chappell, James
%A Diederichs, Severin
%A Garland, Matthew James
%A Gonzalez Caminal, Pau
%A Knetsch, Alexander
%A Loisch, Gregor
%A Poder, Kristjan
%A Schaper, Lucas
%A Schmidt, Bernhard
%A Sheeran, Bridget
%A Tauscher, Gabriele
%A Wesch, Stephan
%A Wood, Jonathan Christopher
%A Zemella, Johann
%A Osterhoff, Jens
%T Precision control of plasma wakefields for highly efficient and energy-spread-preserving electron acceleration
%M PUBDB-2021-03640
%D 2021
%X Plasma-wakefield accelerators driven by intense particle beams promise to significantly reduce the size of future high-energy facilities. These applications require an energy-efficient acceleration process with a well-controlled energy spectrum, both of which can be achieved simultaneously by tailoring the plasma wakefield. Prerequisite for such control of the wakefield is its precise measurement. Here we discuss a new measurement technique that enables femtosecond-level sampling of the longitudinal electric fields and that is particularly powerful due to its operational simplicity. Using this method, we experimentally demonstrated optimal beamloading in a nonlinear electron-driven plasma accelerator by wakefield flattening at the few-percent level. Bunches were accelerated at a gradient of 1.3  GV/m and with an energy-transfer efficiency of (42±4)
%B 12th International Particle Accelerator Conference, IPAC2021
%C 24 May 2021 - 28 May 2021, Campinas (Brazil)
Y2 24 May 2021 - 28 May 2021
M2 Campinas, Brazil
%F PUB:(DE-HGF)6
%9 Conference Presentation
%U https://bib-pubdb1.desy.de/record/463084