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@INPROCEEDINGS{Schneekloth:193126,
      author       = {Schneekloth, Uwe and Goerrissen, Nico},
      title        = {{C}alibration of {OLYMPUS}/{DORIS} beam position monitors},
      reportid     = {PUBDB-2014-04555},
      pages        = {TUPF09},
      year         = {2014},
      note         = {OA},
      abstract     = {The goal of the OLYMPUS experiment is a precise measurement
                      of the ratio of the positron-proton and electron-proton
                      elastic scattering cross sections in order to quantify the
                      effect of two-photon exchange. The experiment was performed
                      using intense beams of electrons and positrons stored in the
                      DORIS ring at Deutsches Elektronen Synchrotron in Hamburg,
                      impinging on an unpolarized, internal, hydrogen gas target.
                      An essential ingredient of the experiment is a precise
                      determination of the luminosity, which requires a precise
                      knowledge of the beam position of both beam species. During
                      DORIS operation cylindrical button beam position monitors,
                      read out by two independent electronics systems, were
                      mounted up- and down-stream of the target chamber. After the
                      end of operation, the readout systems were cross-calibrated.
                      The BPMs were then calibrated using a test-stand, consisting
                      of a wire scanner assembly. The beam was simulated by
                      applying an RF signal to the wire. This paper describes the
                      calibration principles and test setup, together with the
                      results compared to the expected BPM response},
      month         = {Jun},
      date          = {2014-06-30},
      organization  = {Hadron Structure and QCD: from Low to
                       High Energies, Gatchina (Russia), 30
                       Jun 2014 - 4 Jul 2014},
      cin          = {OLYMP},
      cid          = {I:(DE-H253)OLYMP-20120731},
      pnm          = {Experiments at DORIS (OLYMPUS) (POF2-515)},
      pid          = {G:(DE-H253)POF2-DORIS-Exp.-(OLYMPUS)-20130405},
      experiment   = {EXP:(DE-H253)OLYMPUS-20150101},
      typ          = {PUB:(DE-HGF)8},
      url          = {https://bib-pubdb1.desy.de/record/193126},
}