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@INPROCEEDINGS{Popp:601466,
      author       = {Popp, Jennifer and Bohlen, Simon and Helary, Louis and
                      Stehr, Felix and List, Jenny and Moortgat-Pick, Gudrid and
                      Osterhoff, Jens and Põder, Kristjan},
      title        = {{C}ompton transmission polarimetry of laser-plasma
                      accelerated electron beams},
      journal      = {Proceedings of Science / International School for Advanced
                      Studies},
      volume       = {(SPIN2023)},
      issn         = {1824-8039},
      address      = {Trieste},
      publisher    = {SISSA},
      reportid     = {PUBDB-2024-00196, DESY-24-009},
      series       = {2814921},
      pages        = {093},
      year         = {2024},
      abstract     = {Polarised particle beams are indispensable for the study of
                      spin-dependent processes . The LEAP(Laser Electron
                      Acceleration with Polarisation) project at DESY aims to
                      demonstrate theacceleration of polarised electrons in the
                      extremely high fields enabled by laser plasma acceleratorsto
                      create high energy electron beams in ultra-compact
                      footprint. In this proof of principleexperiment,
                      spin-polarised electron beams with energies of tens of MeV
                      will be generated in a sub-millimetre long plasma source.
                      For electron beams of such energies, Compton
                      transmissionpolarimetry is the ideal method to measure the
                      polarisation. Gamma rays produced bybremsstrahlung are
                      transmitted through an iron absorber core magnetised by a
                      surroundingsolenoid, with rate and energy spectrum depending
                      on the relativeorientation of the gamma spin and the
                      magnetisation direction of the iron. Thetransmission
                      asymmetry with respect to the direction of the magnetisation
                      is proportional to theinitial electron polarisation.In this
                      contribution, an overview of the LEAP project is presented,
                      detailing the setup of thepolarimeter as well as its
                      implementation and commissioning status.},
      month         = {Sep},
      date          = {2023-09-24},
      organization  = {25th International Spin Physics
                       Symposium, Durham, North Carolina
                       (USA), 24 Sep 2023 - 29 Sep 2023},
      cin          = {FTX / MPA4},
      ddc          = {530},
      cid          = {I:(DE-H253)FTX-20210408 / I:(DE-H253)MPA4-20220318},
      pnm          = {621 - Accelerator Research and Development (POF4-621)},
      pid          = {G:(DE-HGF)POF4-621},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16 / PUB:(DE-HGF)8 / PUB:(DE-HGF)7},
      doi          = {10.22323/1.456.0093},
      url          = {https://bib-pubdb1.desy.de/record/601466},
}