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@ARTICLE{Khubbutdinov:611660,
      author       = {Khubbutdinov, Ruslan and Geloni, Gianluca and Saldin,
                      Evgeny and Bagschik, Kai},
      title        = {{S}patial coherence of synchrotron radiation degraded by
                      grating monochromators},
      journal      = {Optics express},
      volume       = {32},
      number       = {27},
      issn         = {1094-4087},
      address      = {Washington, DC},
      publisher    = {Optica},
      reportid     = {PUBDB-2024-04994, arXiv:2406.10116},
      pages        = {47810 - 47828},
      year         = {2024},
      abstract     = {Fourth-generation synchrotron sources promise an enormous
                      increase in the spatial coherence of X-ray radiation. In the
                      EUV to soft X-ray range, the spatial coherence could
                      reachalmost $100\%$ in both the horizontal and vertical
                      directions. Identifying and understanding potential sources
                      of degradation in the spatial coherence of X-rays
                      transported along the beamline is critical to enable optimal
                      performance for the experiments at the beamlines. Grating
                      monochromators are an essential optical component of most
                      EUV and soft X-ray beamlines. Recently, we have found that
                      the spatial coherence is strongly degraded by the gratings
                      used in these monochromators. In this work, we present a
                      detailed physical and theoretical description of the origin
                      and underlying effects that cause this degradation and
                      describe the influence of the grating parameters and the
                      exit slit of the monochromator. The theoretical analysis is
                      presented in the framework of statistical optics. It is
                      important to note that the described effects in the paper
                      are distinct from the decoherence effects based on optics
                      vibrations and the resulting virtual source broadening or
                      wavefront degradation caused by surface irregularities and
                      optical roughness.},
      cin          = {$XFEL_E2_FP$ / FS-PETRA-BO / MPY},
      ddc          = {530},
      cid          = {$I:(DE-H253)XFEL_E2_FP-20221126$ /
                      I:(DE-H253)FS-PETRA-BO-20240110 / I:(DE-H253)MPY-20120731},
      pnm          = {631 - Matter – Dynamics, Mechanisms and Control
                      (POF4-631)},
      pid          = {G:(DE-HGF)POF4-631},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16},
      eprint       = {2406.10116},
      howpublished = {arXiv:2406.10116},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2406.10116;\%\%$},
      pubmed       = {39876103},
      UT           = {WOS:001401093900003},
      doi          = {10.1364/OE.542077},
      url          = {https://bib-pubdb1.desy.de/record/611660},
}