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@INPROCEEDINGS{PenaAsmus:600086,
      author       = {Pena Asmus, Felipe Lars and Lindstroem, Carl Andreas and
                      Beinortaite, Judita and Björklund Svensson, Jonas Halfdan
                      and Boulton, Lewis Anthony and Diederichs, Severin and
                      Foster, Brian and Garland, Matthew James and Gonzalez
                      Caminal, Pau and Loisch, Gregor and Schröder, Sarah and
                      Thévenet, Maxence and Wesch, Stephan and Wood, Jonathan
                      Christopher and Osterhoff, Jens and D'Arcy, Richard},
      title        = {{D}river energy depletion - {E}nergy {D}epletion and
                      {R}e-{A}cceleration of {D}river {E}lectrons},
      reportid     = {PUBDB-2023-07739},
      year         = {2023},
      abstract     = {For plasma-wakefield accelerators to fulfil their potential
                      for cost effectiveness and reduced envi-ronmental footprint,
                      it is essential that their energy-transfer efficiency be
                      maximized. A key aspectof this efficiency is the
                      near-complete transfer of energy, or depletion, from the
                      driver electrons tothe plasma wake. Achieving full depletion
                      is limited by the process of re-acceleration, which oc-curs
                      when the driver electrons decelerate to non-relativistic
                      energies, slipping backwards into theaccelerating phase of
                      the wakefield and being subsequently re-accelerated. Such
                      re-accelerationis observed here for the first time. At this
                      re-acceleration limit, we measure a beam driver de-positing
                      (56 ± $5)\%$ of its energy into a 195-mm-long plasma.
                      Combining this driver-to-plasmaefficiency with previously
                      measured plasma-to-beam and expected wall-plug-to-driver
                      efficien-cies, our result shows that plasma-wakefield
                      accelerators can in principle reach or even exceed
                      theenergy-transfer efficiency of conventional accelerators.},
      month         = {Sep},
      date          = {2023-09-18},
      organization  = {European Advanced Accelerator Concepts
                       Workshop, Isola d'Elba (Italy), 18 Sep
                       2023 - 22 Sep 2023},
      cin          = {$HH_FH_FTX_AS$ / MPA2},
      cid          = {$I:(DE-H253)HH_FH_FTX_AS-20210421$ /
                      I:(DE-H253)MPA2-20210408},
      pnm          = {621 - Accelerator Research and Development (POF4-621) / 6G2
                      - FLASH (DESY) (POF4-6G2)},
      pid          = {G:(DE-HGF)POF4-621 / G:(DE-HGF)POF4-6G2},
      experiment   = {EXP:(DE-H253)FLASHForward-20150101},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://bib-pubdb1.desy.de/record/600086},
}