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@ARTICLE{Valentino:206164,
      author       = {Valentino, Gianluca and Aberle, Oliver and Assmann, Ralph
                      and Bertarelli, Alessandro and Boccard, Christian and Bruce,
                      Roderik and Burkart, Florian and Wollmann, Daniel and
                      Nosych, Andriy and Valentino, Gianluca and Calvo, Eva and
                      Cauchi, Marija and Dallocchio, Alessandro and Deboy, Daniel
                      and Gasior, Marek and Jones, Rhodri and Kain, Verena and
                      Lari, Luisella and Redaelli, Stefano and Rossi, Adriana},
      title        = {{B}eam feasibility study of a collimator with in-jaw beam
                      position monitors},
      journal      = {Nuclear instruments},
      volume       = {768},
      issn         = {0369-643X},
      address      = {Amsterdam},
      publisher    = {North-Holland Publ. Co.},
      reportid     = {PUBDB-2015-00678},
      pages        = {62–68},
      year         = {2014},
      note         = {(c) Elsevier B.V.},
      abstract     = {At present, the beam-based alignment of the LHC collimators
                      is performed by touching the beam halo with both jaws of
                      each collimator. This method requires dedicated fills at low
                      intensities that are done infrequently and makes this
                      procedure time consuming. This limits the operational
                      flexibility, in particular in the case of changes of optics
                      and orbit configuration in the experimental regions. The
                      performance of the LHC collimation system relies on the
                      machine reproducibility and regular loss maps to validate
                      the settings of the collimator jaws. To overcome these
                      limitations and to allow a continuous monitoring of the beam
                      position at the collimators, a design with jaw-integrated
                      Beam Position Monitors (BPMs) was proposed and successfully
                      tested with a prototype (mock-up) collimator in the CERN
                      SPS. Extensive beam experiments allowed to determine the
                      achievable accuracy of the jaw alignment for single and
                      multi-turn operation. In this paper, the results of these
                      experiments are discussed. The non-linear response of the
                      BPMs is compared to the predictions from electromagnetic
                      simulations. Finally, the measured alignment accuracy is
                      compared to the one achieved with the present collimators in
                      the LHC.},
      cin          = {MPY},
      ddc          = {530},
      cid          = {I:(DE-H253)MPY-20120731},
      pnm          = {Facility (machine) PETRA III (POF2-PETRA-III-20130405) /
                      Facility (machine) FLASH (POF2-FLASH-20130405) / Facility
                      (machine) XFEL (POF2-XFEL-20130405)},
      pid          = {G:(DE-H253)POF2-PETRA-III-20130405 /
                      G:(DE-H253)POF2-FLASH-20130405 /
                      G:(DE-H253)POF2-XFEL-20130405},
      experiment   = {EXP:(DE-H253)PETRAIII(machine)-20150101 /
                      EXP:(DE-H253)FLASH(machine)-20150101 /
                      EXP:(DE-H253)XFEL(machine)-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000344995400010},
      doi          = {10.1016/j.nima.2014.09.024},
      url          = {https://bib-pubdb1.desy.de/record/206164},
}