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@ARTICLE{Buchenau:201688,
      author       = {Buchenau, Ulrich},
      title        = {{E}valuation of x-ray {B}rillouin scattering data},
      journal      = {Physical review / E},
      volume       = {90},
      number       = {6},
      issn         = {1539-3755},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2015-03982},
      pages        = {062319},
      year         = {2014},
      abstract     = {Making use of the classical second-moment sum rule, it is
                      possible to convert a series of constant-Q x-ray Brillouin
                      scattering scans (Q momentum transfer) into a series of
                      constant frequency scans over the measured Q range. The
                      method is applied to literature results for the longitudinal
                      phonon dispersion in several glass formers. The constant
                      frequency scans are well fitted in terms of a Q-independent
                      phonon damping depending exclusively on the frequency, in
                      agreement with two recent theories of the boson peak. The
                      method allows us to link the x-ray Brillouin scattering to
                      the diffuse Umklapp scattering from the boson peak
                      vibrations at higher momentum transfer on an absolute
                      intensity scale.},
      cin          = {ICS-1 / Neutronenstreuung ; JCNS-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)ICS-1-20110106 / I:(DE-Juel1)JCNS-1-20110106},
      pnm          = {451 - Soft Matter Composites (POF2-451) / 54G - JCNS
                      (POF2-54G24)},
      pid          = {G:(DE-HGF)POF2-451 / G:(DE-HGF)POF2-54G24},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000349308700002},
      doi          = {10.1103/PhysRevE.90.062319},
      url          = {https://juser.fz-juelich.de/record/201688},
}