Electron trapping and acceleration by the plasma wakefield of a self-modulating proton beam

@article{Lotov2014ElectronTA,
  title={Electron trapping and acceleration by the plasma wakefield of a self-modulating proton beam},
  author={K. V. Lotov and Alexander P. Sosedkin and Alexey Petrenko and L{\'i}gia Diana Amorim and Jorge Vieira and Ricardo A. Fonseca and L. O. Silva and E. Gschwendtner and Patric Muggli},
  journal={Physics of Plasmas},
  year={2014},
  volume={21},
  pages={123116}
}
It is shown that co-linear injection of electrons or positrons into the wakefield of the self-modulating particle beam is possible and ensures high energy gain. The witness beam must co-propagate with the tail part of the driver, since the plasma wave phase velocity there can exceed the light velocity, which is necessary for efficient acceleration. If the witness beam is many wakefield periods long, then the trapped charge is limited by beam loading effects. The initial trapping is better for… 

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