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@INPROCEEDINGS{MA:910114,
      author       = {MA, Zhanwen and LIEUTENANT, Klaus and VOIGT, Jörg and
                      SCHRADER, Tobias E. and GUTBERLET, Thomas and BRÜCKEL,
                      Thomas},
      title        = {{VITESS} simulation and virtual experiment of the neutron
                      diffractometer for small samples at the {H}igh {B}rilliance
                      {N}eutron {S}ource},
      reportid     = {FZJ-2022-03622},
      year         = {2022},
      abstract     = {For the sustainable development of the neutron community in
                      Europe and Germany, the High Brilliance Neutron Source (HBS)
                      has been proposed at the Julich Center for Neutron Science
                      (JCNS) [1]. The accelerator, target, and moderators of HBS
                      have been optimized to achieve a high moderator surface peak
                      brilliance comparable to a medium flux reactor source or
                      medium power spallation sources [2]. The instruments are
                      optimized by Monte-Carlo simulations to make full use of the
                      high brilliance and high flexibility of the HBS. The low
                      dimensional moderators of HBS are well suited for the
                      investigation of small samples [3]. For example, in neutron
                      macromolecular crystallography, typical sample volumes reach
                      from 0.01 mm3 to 1 mm3 [4]. As the scattered signal is
                      small, special care must be taken to keep the instrumental
                      background extremely low. In this work, the design progress
                      of a macromolecular diffractometer, including the
                      optimization of the instrument and the evaluation of the
                      virtual experiments, will be presented. By tailoring a
                      small, appropriately collimated beam far upstream of the
                      sample position, we can obtain a low background tunable
                      neutron beam at a 1 mm2 sample with a flux comparable to the
                      existing instruments at spallation neutron sources or
                      reactor sources. [1] T. Gutberlet et al., “The Jülich
                      high brilliance neutron source project – Improving access
                      to neutrons,” Phys. B Condens. Matter, vol. 570, no.
                      December 2017, pp. 345– 348, (2019). [2] T. Brückel et
                      al., “Conceptual Design Report Jülich High Brilliance
                      Neutron Source ( HBS ),” Forschungszentrum Jülich GmbH,
                      (2020). [3] T. Cronert et al., “High brilliant thermal and
                      cold moderator for the HBS neutron source project
                      Jülich,” J. Phys. Conf. Ser., vol. 746, no. 1, (2016).
                      [4] M. P. Blakeley and A. D. Podjarny, “Neutron
                      macromolecular crystallography,” Emerg. Top. Life Sci.,
                      vol. 2, no. 1, pp. 39–55, (2018).},
      month         = {Oct},
      date          = {2022-10-11},
      organization  = {JCNS WORKSHOP 2022 TRENDS AND
                       PERSPECTIVES IN NEUTRON SCATTERING:
                       EXPERIMENTS AND DATA ANALYSIS IN THE
                       DIGITAL AGE, Evangelische Akademie
                       Tutzing (Germany), 11 Oct 2022 - 14 Oct
                       2022},
      subtyp        = {Invited},
      cin          = {JCNS-2 / JCNS-HBS / PGI-4 / JARA-FIT / JCNS-FRM-II},
      cid          = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)JCNS-HBS-20180709
                      / I:(DE-Juel1)PGI-4-20110106 / $I:(DE-82)080009_20140620$ /
                      I:(DE-Juel1)JCNS-FRM-II-20110218},
      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)6},
      url          = {https://juser.fz-juelich.de/record/910114},
}