Advanced schemes for underdense plasma photocathode wakefield accelerators: pathways towards ultrahigh brightness electron beams

G. G. Manahan, A. F. Habib, P. Scherkl, D. Ullmann, A. Beaton, A. Sutherland, G. Kirwan, P. Delinikolas, T. Heinemann, R. Altuijri, A. Knetsch, O. Karger, N. M. Cook, D. L. Bruhwiler, Z.-M. Sheng, J. B. Rosenzweig, B. Hidding

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Abstract

The 'Trojan Horse' underdense plasma photocathode scheme applied to electron beam-driven plasma wakefield acceleration has opened up a path which promises high controllability and tunability and to reach extremely good quality as regards emittance and five-dimensional beam brightness. This combination has the potential to improve the state-of-the-art in accelerator technology significantly. In this paper, we review the basic concepts of the Trojan Horse scheme and present advanced methods for tailoring both the injector laser pulses and the witness electron bunches and combine them with the Trojan Horse scheme. These new approaches will further enhance the beam qualities, such as transverse emittance and longitudinal energy spread, and may allow, for the first time, to produce ultrahigh six-dimensional brightness electron bunches, which is a necessary requirement for driving advanced radiation sources.
Original languageEnglish
Article number0182
Number of pages11
JournalPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Volume377
Issue number2151
Early online date24 Jun 2019
DOIs
Publication statusPublished - 31 Aug 2019

Keywords

  • plasma wakefield acceleration
  • underdense plasma photocathode
  • simultaneous spatial and temporal focusing
  • energy spread compensation

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