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@ARTICLE{Chitgar:873030,
      author       = {Chitgar, Zahra M. and Gibbon, Paul and Böker, Jürgen and
                      Lehrach, Andreas and Büscher, Markus},
      title        = {{E}lectron self-injection threshold for the tandem-pulse
                      laser wakefield accelerator},
      reportid     = {FZJ-2020-00481},
      year         = {2019},
      note         = {11 pages, 9 figures, submitted for publication (2019)},
      abstract     = {A controllable injection scheme is key to producing high
                      quality laser-driven electron beams and X-rays.
                      Self-injection is the most straightforward scheme leading to
                      high current and peak energies, but is susceptible to
                      variations in laser parameters and target characteristics.
                      In this work improved control of electron self-injection in
                      the nonlinear cavity regime using two laser-pulses
                      propagating in tandem is investigated. In particular the
                      advantages of the tandem-pulse scheme in terms of injection
                      threshold, electron energy and beam properties in a regime
                      relevant to betatron radiation are demonstrated. Moreover it
                      is shown that the laser power threshold for electron
                      self-injection can be reduced by up to a factor of two
                      compared to the standard, single-pulse wakefield scheme.},
      cin          = {IKP-4 / PGI-6 / JSC},
      cid          = {I:(DE-Juel1)IKP-4-20111104 / I:(DE-Juel1)PGI-6-20110106 /
                      I:(DE-Juel1)JSC-20090406},
      pnm          = {631 - Accelerator R $\&$ D (POF3-631) / 511 - Computational
                      Science and Mathematical Methods (POF3-511) / PhD no Grant -
                      Doktorand ohne besondere Förderung (PHD-NO-GRANT-20170405)},
      pid          = {G:(DE-HGF)POF3-631 / G:(DE-HGF)POF3-511 /
                      G:(DE-Juel1)PHD-NO-GRANT-20170405},
      typ          = {PUB:(DE-HGF)25},
      eprint       = {1911.12762},
      howpublished = {arXiv:1911.12762},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:1911.12762;\%\%$},
      url          = {https://juser.fz-juelich.de/record/873030},
}