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@INPROCEEDINGS{Sedlek:357731,
      author       = {Sedláček, Ondrej and Ady, Marton and Churchman, Ashley
                      and Forck, Peter and Mazzoni, Stefano and Rossi, Adriana and
                      Sameed, Muhammed and Schneider, Gerhard and Sequeiro,
                      Cristina and Sidorowski, Krystian and Stringer, Oliver and
                      Udrea, Serban and Veness, Raymond and Webber-Date, Alexander
                      and Welsch, Carsten and Zhang, Hao},
      editor       = {Schaa, Volker R. W. and Batten, Tonia and Bree, Michael and
                      Petit-Jean-Genaz, Christine and Hunter, Darren},
      title        = {{G}as {J}et-{B}ased {F}luorescence {P}rofile {M}onitor for
                      {L}ow {E}nergy {E}lectrons and {H}igh {E}nergy {P}rotons at
                      {LHC}},
      address      = {Geneva, Switzerland},
      publisher    = {JACoW Publishing},
      reportid     = {GSI-2025-00423},
      pages        = {6 pages},
      year         = {2023},
      note         = {Published by JACoW Publishing under the terms of the
                      Creative Commons Attribution 4.0 International license.},
      abstract     = {The ever-developing accelerator capabilities of increasing
                      beam intensity, e.g. for High Luminosity LHC (HL-LHC),
                      demand novel non-invasive beam diagnostics. As a part of the
                      HL-LHC project a Beam Gas Curtain monitor (BGC), a gas
                      jet-based fluorescence transverse profile monitor, is being
                      developed. The BGC uses a supersonic gas jet sheet that
                      traverses the beam at 45° and visualizes a two-dimensional
                      beam-induced fluorescent image. The principle of observing
                      photons created by fluorescence makes the monitor
                      insensitive to present electric or magnetic fields.
                      Therefore, the monitor is well suited for high-intensity
                      beams such as low-energy electron beam of Hollow Electron
                      Lens (HEL), and HL-LHC proton beam, either as a profile or
                      an overlap monitor. This talk will focus on the first gas
                      jet measured transverse profile of the 7keV hollow electron
                      beam. The measurements were carried out at the Electron Beam
                      Test Stand at CERN testing up to 5A beam for HEL. A
                      comparison with Optical Transition Radiation measurements
                      shows consistency with the BGC results. The BGC installation
                      of January 2023 at LHC is shown, including past results from
                      distributed gas fluorescence tests.},
      month         = {Sep},
      date          = {2023-09-10},
      organization  = {12th International Beam
                       Instrumentation Conference, Saskatoon
                       (Canada), 10 Sep 2023 - 14 Sep 2023},
      keywords     = {Accelerator Physics (Other) / 03 Transverse Profile and
                      Emittance Monitors (Other)},
      cin          = {BEA},
      cid          = {I:(DE-Ds200)BEA-20051214OR061},
      pnm          = {899 - ohne Topic (POF4-899)},
      pid          = {G:(DE-HGF)POF4-899},
      experiment   = {$EXP:(DE-Ds200)no_experiment-20200803$},
      typ          = {PUB:(DE-HGF)8},
      doi          = {10.18429/JACOW-IBIC2023-WE3I01},
      url          = {https://repository.gsi.de/record/357731},
}