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@INPROCEEDINGS{Burkhardt:154651,
      author       = {Burkhardt, Anja and Reime, Bernd and Pakendorf, Tim and
                      Roever, Jan and Warmer, Martin and Goeries, Dennis and
                      Stuebe, Nicolas and Meyer, Jan and Panneerselvam, Saravanan
                      and Fischer, Pontus and Meents, Alke},
      title        = {{T}he {C}rystallography {E}ndstation at {B}eamline {P}11 at
                      {PETRA} {III}},
      school       = {Warwick University},
      reportid     = {DESY-2013-01010},
      year         = {2013},
      abstract     = {Beamline P11 at PETRA III is dedicated to imaging
                      anddiffraction experiments of biological samples.
                      Thebeamline provides two experimental endstations: anX-ray
                      microscope and a crystallography experiment.The P11 X-ray
                      optics consist of a LN2 cooled doublecrystal monochromator
                      and two horizontal deflectingand one vertical deflecting
                      X-ray mirrors. The mirrorsare dynamically bendable and are
                      used to generate anintermediate focus at 65.5 m from the
                      source with a sizeof 16 × 96 μm2 rms (v × h).The
                      crystallography endstation is installed on top of a 8meter
                      long granite block which is the key element of theP11
                      experimental hutch. The sample position is locatedat 72.9 m
                      from the source. A CVD diamond basedX-ray feedback system
                      provides a long term beamposition stability of better than 1
                      μm. Thecrystallography experiment is equipped with a
                      highprecision single axis goniometer with a combinedsphere
                      of confusion of smaller than 100 nm. Theinstrument provides
                      an on-axis microscope for easycrystal centering and beam
                      alignment. Diffractionexperiments can be performed at
                      energies between4 and 30 keV. The beamsize can be adjusted
                      between6 × 12 μm2 FWHM (v × h) with a photon flux of
                      about2 × 1012 ph/s and 300 × 300 μm2 FWHM (v × h) with1
                      × 1013 ph/s. Due to the very small beam divergenceP11 is
                      ideally suited to measure large unit cell systems,such as
                      viruses or large molecular complexes. Thebeamline is
                      equipped with a Pilatus 6M-F detectorwhich allows fast data
                      collection with frame rates of upto 25 Hz. In addition to
                      the standard data collectionfeatures the beamline control
                      software at P11 provides agrid scan capability for crystal
                      centering andmeasurement of micro crystals (with and without
                      crystalrotation) and an interface for serial
                      crystallography. Anautomatic sample changer is under
                      construction and willbe available to users in 2014. The
                      robot will be able tomount samples within 10 s and the large
                      dewar willallow storage of more than 300 samples.},
      month         = {Aug},
      date          = {2013-08-25},
      organization  = {28th Meeting of the European
                       Crystallographic Association, Warwick
                       (United Kingdom), 25 Aug 2013 - 29 Aug
                       2013},
      cin          = {FS-PE},
      cid          = {I:(DE-H253)FS-PE-20120731},
      pnm          = {PETRA Beamline P11 (POF2-54G14)},
      pid          = {G:(DE-H253)POF2-P11-20130405},
      experiment   = {EXP:(DE-H253)P-P11-20150101},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://bib-pubdb1.desy.de/record/154651},
}