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@INPROCEEDINGS{Rek:601867,
      author       = {Rek, Zlatko and Chapman, Henry N. and Bajt, Sasa and
                      Sarler, Bozidar},
      title        = {{N}umerical simulations of temperature loads on multilayer
                      {L}aue lenses},
      journal      = {Journal of physics / Conference Series},
      volume       = {2766},
      number       = {1},
      issn         = {1742-6588},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {PUBDB-2024-00379},
      pages        = {012034},
      year         = {2024},
      abstract     = {We present numerical simulations of the heat loads on novel
                      diffractive X-ray optics, known as multilayer Laue lenses,
                      exposed to high intensity X-ray beams produced by an X-ray
                      free electron laser (XFEL). These lenses can be used to
                      focus XFEL beams to nanometer spots. The temperature
                      distribution within the lens and temperature change as a
                      function of incident pulse frequencies were calculated for
                      two different lens geometries and several material pairs and
                      material ratios of the MLLs. Simulations took into account
                      the special pulse structure of European XFEL with X-rays
                      being delivered in pulse trains. After defining the
                      geometric model, computational grid, material properties,
                      and boundary conditions, a grid sensitivity study was
                      carried out. We solved the transient heat energy transport
                      equation in solids for mixed boundary conditions. Results of
                      these simulations will help select materials and lens
                      geometry for future XFEL experiments.},
      month         = {Jun},
      date          = {2024-06-10},
      organization  = {EUROTHERM 2024, Bled (Slovenia), 10
                       Jun 2024 - 13 Jun 2024},
      cin          = {FS-ML / CFEL-I},
      ddc          = {530},
      cid          = {I:(DE-H253)FS-ML-20120731 / I:(DE-H253)CFEL-I-20161114},
      pnm          = {633 - Life Sciences – Building Blocks of Life: Structure
                      and Function (POF4-633)},
      pid          = {G:(DE-HGF)POF4-633},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16 / PUB:(DE-HGF)8},
      doi          = {10.1088/1742-6596/2766/1/012034},
      url          = {https://bib-pubdb1.desy.de/record/601867},
}