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@ARTICLE{Stefanescu:225649,
      author       = {Stefanescu, I. and Christensen, M. and Hall-Wilton, R. and
                      Holm-Dahlin, S. and Iversen, K. and Klein, M. and Mannix, D.
                      and Schefer, J. and Schmidt, C. J. and Schweika, W. and
                      Stuhr, U.},
      title        = {{P}erformance study of the {J}alousie detector baseline
                      design for the {ESS} thermal powder diffractometer {HEIMDAL}
                      through {GEANT}4 simulations},
      journal      = {Journal of Instrumentation},
      volume       = {14},
      number       = {10},
      issn         = {1748-0221},
      address      = {London},
      publisher    = {Inst. of Physics},
      reportid     = {GSI-2020-00406},
      pages        = {P10020 - P10020},
      year         = {2019},
      note         = {"© 2019 The Author(s). Published by IOP Publishing Ltd on
                      behalf of Sissa Medialab. Original content from this work
                      may be used under the terms of the Creative Commons
                      Attribution 3.0 licence. Any further distribution of this
                      work must maintain attribution to the author(s) and the
                      title of the work, journal citation and DOI. "},
      abstract     = {HEIMDAL is a thermal powder diffractometer designed to
                      operate at the European Spallation Source, world's most
                      intense neutron source. The detailed design of the
                      instrument, which is expected to enter user operation in
                      2024/2025, assumes that the neutrons scattered by the powder
                      under investigation will be collected with hundreds of
                      large-area Multi-Wire Proportional Counters employing a
                      10B4C-solid converter. The gas counters will consist of
                      large active volumes and tapered trapezoidal shapes that
                      allow for close packing into a cylindrical shell with high
                      solid angle coverage. The whole detector will operate in an
                      air environment within the shielding cave and provide
                      signals with sensitivity for locating detection in three
                      dimensions. This paper presents the results of a GEANT4
                      study of the baseline design for the HEIMDAL powder
                      diffraction detector. The detector model was used to study
                      the spatial resolution, which in the horizontal scattering
                      plane must be below 3 mm in order to enable high-resolution
                      diffraction studies. The contribution of the detector to the
                      resolving power of the instrument, one of the key
                      figures-of-merit for powder diffractometers, was also
                      investigated. Most of the simulation results reported in
                      this work cannot be validated against a sufficiently similar
                      physical reference until the first segment or module are
                      constructed and tested with a neutron beam. However, these
                      results can help to identify possible ways of optimising the
                      detector design and provide the first glimpse into the
                      expected performance of this technological approach.},
      cin          = {DTL},
      ddc          = {610},
      cid          = {I:(DE-Ds200)DTL-20051214OR031},
      pnm          = {612 - Cosmic Matter in the Laboratory (POF3-612)},
      pid          = {G:(DE-HGF)POF3-612},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000501798100020},
      doi          = {10.1088/1748-0221/14/10/P10020},
      url          = {https://repository.gsi.de/record/225649},
}