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@ARTICLE{Nemkovskiy:838624,
      author       = {Nemkovskiy, Kirill and Ioffe, Alexander and Su, Y. and
                      Babcock, E. and Schweika, W. and Brückel, Thomas},
      title        = {{S}imulation and optimization of a new focusing polarizing
                      bender for the diffuse neutrons scattering spectrometer
                      {DNS} at {MLZ}6{G}4},
      journal      = {Journal of physics / Conference Series},
      volume       = {862},
      issn         = {1742-6596},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {FZJ-2017-07201},
      pages        = {012018 -},
      year         = {2017},
      abstract     = {We present the concept and the results of the simulations
                      of a new polarizer for the diffuse neutron scattering
                      spectrometer DNS at MLZ. The concept of the polarizer is
                      based on the idea of a bender made from the stack of the
                      silicon wafers with a double-side supermirror polarizing
                      coating and absorbing spacers in between. Owing to its
                      compact design, such a system provides more free space for
                      the arrangement of other instrument components. To reduce
                      activation of the polarizer in the high intensity neutron
                      beam of the DNS spectrometer we plan to use the Fe/Si
                      supermirrors instead of currently used FeCoV/Ti:N ones.
                      Using the VITESS simulation package we have performed
                      simulations for horizontally focusing polarizing benders
                      with different geometries in the combination with the
                      double-focusing crystal monochromator of DNS. Neutron
                      transmission and polarization efficiency as well as the
                      effects of the focusing for convergent conventional
                      C-benders and S-benders have been analyzed both for
                      wedge-like and plane-parallel convergent geometries of the
                      channels. The results of these simulations and the
                      advantages/disadvantages of the various configurations are
                      discussed.},
      cin          = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
                      (München) ; JCNS-FRM-II / JCNS-2 / PGI-4 / JARA-FIT},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
                      $I:(DE-82)080009_20140620$},
      pnm          = {6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for
                      Neutron Research (JCNS) (POF3-623) / 524 - Controlling
                      Collective States (POF3-524) / 6212 - Quantum Condensed
                      Matter: Magnetism, Superconductivity (POF3-621)},
      pid          = {G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4 /
                      G:(DE-HGF)POF3-524 / G:(DE-HGF)POF3-6212},
      experiment   = {EXP:(DE-MLZ)DNS-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000417442500018},
      doi          = {10.1088/1742-6596/862/1/012018},
      url          = {https://juser.fz-juelich.de/record/838624},
}