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@INPROCEEDINGS{Voigt:894057,
      author       = {Voigt, J. and Zakalek, P. and Rücker, U. and Li, Jingjing
                      and Ma, Zhanwen and Lieutenant, K. and Gutberlet, T. and
                      Brückel, T.},
      title        = {{S}ource requirements for spectrometers at low energy
                      accelerator driven neutron facilities},
      reportid     = {FZJ-2021-03011},
      year         = {2021},
      abstract     = {The shutdown of several national reactor driven neutron
                      sources has stimulated intense research and development
                      activities for successor facilities[1]. A promising
                      technology is the neutron production by low energy nuclear
                      reactions, that can be driven by accelerators operating in
                      the particle energy range between 3 and 100 MeV. While the
                      neutron yield of theses reactions is much lower than the
                      neutron yield of the spallation reaction, the lower particle
                      energy enables a very close coupling of the thermal and
                      cryogenic moderators to the target and therefore small
                      volume moderators with a high density of slow neutrons. On
                      the other hand, the comparably low particle energies
                      facilitate the shielding issue significantly and allow
                      therefore neutron optical components in a distance as close
                      as 50 cm from the thermal or cold moderator surfaces
                      allowing the extraction of a reasonably divergent beam from
                      the source, which can be efficiently transported to the
                      sample by modern neutron optics. Therefore instruments,
                      which require a large phase space, can benefit strongly from
                      the characteristics of a low energy accelerator driven
                      neutron facility (LENF). Among them are typically
                      spectrometers of both direct and indirect geometry, which
                      require typically relaxed spatial and angular resolution and
                      a good energy resolution. Here we present source parameters
                      that have been determined for different spectrometers
                      employing thermal and cold neutrons.},
      month         = {May},
      date          = {2021-05-17},
      organization  = {QENS/WINS 2021, online event (online
                       event), 17 May 2021 - 21 May 2021},
      cin          = {JCNS-2 / PGI-4 / JARA-FIT / JCNS-HBS},
      cid          = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
                      $I:(DE-82)080009_20140620$ / I:(DE-Juel1)JCNS-HBS-20180709},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G4 - Jülich Centre for Neutron
                      Research (JCNS) (FZJ) (POF4-6G4)},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G4},
      typ          = {PUB:(DE-HGF)1},
      url          = {https://juser.fz-juelich.de/record/894057},
}