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@INBOOK{Santra:301141,
      author       = {Santra, Robin and Young, Linda},
      title        = {{I}nteraction of {I}ntense {X}-{R}ay {B}eams with {A}toms},
      address      = {Cham},
      publisher    = {Springer International Publishing},
      reportid     = {PUBDB-2016-02575},
      pages        = {1233-1260},
      year         = {2016},
      comment      = {Synchrotron Light Sources and Free-Electron Lasers /
                      Jaeschke, Eberhard J. (Editor) ; Cham : Springer
                      International Publishing, 2016, Chapter 25 ; ISBN:
                      978-3-319-14393-4},
      booktitle     = {Synchrotron Light Sources and
                       Free-Electron Lasers / Jaeschke,
                       Eberhard J. (Editor) ; Cham : Springer
                       International Publishing, 2016, Chapter
                       25 ; ISBN: 978-3-319-14393-4},
      abstract     = {Generally, the probability that a given atom in a material
                      absorbs an X-ray photon in a single X-ray pulse is much less
                      than unity for storage-ring-based X-ray sources, even for
                      third-generation synchrotron radiation sources. This
                      situation has changed dramatically with the arrival of X-ray
                      free-electron lasers: In the micro-focus of an X-ray
                      free-electron laser, saturation of X-ray photoabsorption is
                      routinely achieved. The immediate consequence is that the
                      overall behavior of matter under such extreme conditions is
                      characterized by efficient multiphoton absorption via a
                      sequence of single-photon absorption events combined with
                      inner-shell decay cascades and collisional ionization
                      processes. In this way, unusual, highly excited states of
                      matter are formed. Focusing on free atoms, this article
                      provides a theoretical framework for the description of
                      X-ray–matter interactions. The nature of X-ray multiphoton
                      physics is explained, and the theory is compared with
                      experimental data on atoms.},
      cin          = {FS-CFEL-3},
      cid          = {I:(DE-H253)FS-CFEL-3-20120731},
      pnm          = {6211 - Extreme States of Matter: From Cold Ions to Hot
                      Plasmas (POF3-621)},
      pid          = {G:(DE-HGF)POF3-6211},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)7},
      UT           = {WOS:00},
      doi          = {10.1007/978-3-319-14394-1_25},
      url          = {https://bib-pubdb1.desy.de/record/301141},
}