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@INPROCEEDINGS{Chen:1005497,
      author       = {Chen, Junyang and Rücker, Ulrich and Voigt, Jörg and
                      Zakalek, Paul and Vezhlev, Egor and Li, Jingjing and
                      Gutberlet, Thomas and Brückel, Thomas},
      title        = {{T}hermal moderator-reflector design of the 24{H}z target
                      station for the {H}igh {B}rilliance {N}eutron {S}ource},
      reportid     = {FZJ-2023-01503},
      year         = {2023},
      abstract     = {The High Brilliance Neutron Source (HBS) is expected to be
                      the next-generation neutron facility, which uses low proton
                      energy (70MeV) to achieve high neutron brilliance. As the
                      moderator-reflector unit is correlated to the neutron
                      moderation, reflection, and transportation, designing a
                      suitable moderator-reflector unit is one of the important
                      issues for achieving the “high brilliance” of the
                      thermal neutron cloud. In this research, the optimization of
                      the thermal moderator-reflector of the 24Hz target station
                      will be conducted to optimize pulse shape and intensity. The
                      Monte Carlo simulation is applied to the design. PHITS and
                      Diffmod are used. In this presentation, at first, the
                      proof-of-principle simulation to reduce the absorption of
                      hydrogenous moderator material is introduced. The time and
                      energy characteristic of candidate material and structure
                      are simulated and analyzed. Then, according to the neutron
                      transportation simulation of different moderator-reflector
                      unit, the specific design is presented. And we will show the
                      result of thermal behavior and neutronic characteristics of
                      this moderator-reflector unit.This work is part of the
                      collaboration within ELENA and LENS on the development of
                      HiCANS.},
      month         = {Mar},
      date          = {2023-03-19},
      organization  = {Eighth European Conference on Neutron
                       Scattering, TUM Department of
                       Mechanical Engineering and the new
                       Science Congress Center Munich
                       (Germany), 19 Mar 2023 - 23 Mar 2023},
      subtyp        = {Invited},
      cin          = {JCNS-2 / PGI-4 / JCNS-HBS / JARA-FIT / JCNS-FRM-II},
      cid          = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
                      I:(DE-Juel1)JCNS-HBS-20180709 / $I:(DE-82)080009_20140620$ /
                      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)24},
      url          = {https://juser.fz-juelich.de/record/1005497},
}