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Neutron detectors for the ESS diffractometers
European Spallation Source ESS ERIC, Lund.
Aarhus University, Aarhus, Denmark.
Helmholtz-Zentrum Geesthacht, Germany.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design. European Spallation Source ESS ERIC, Lund.ORCID iD: 0000-0003-3221-2086
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2017 (English)In: Journal of Instrumentation, ISSN 1748-0221, E-ISSN 1748-0221, Vol. 12, no 1, P01019Article in journal (Refereed) Published
Abstract [en]

The ambitious instrument suite for the future European Spallation Source whose civil construction started recently in Lund, Sweden, demands a set of diverse and challenging requirements for the neutron detectors. For instance, the unprecedented high flux expected on the samples to be investigated in neutron diffraction or reflectometry experiments requires detectors that can handle high counting rates, while the investigation of sub-millimeter protein crystals will only be possible with large-area detectors that can achieve a position resolution as low as 200 μm. This has motivated an extensive research and development campaign to advance the state-of-the-art detector and to find new technologies that can reach maturity by the time the ESS will operate at full potential. This paper presents the key detector requirements for three of the Time-of-Flight (TOF) diffraction instrument concepts selected by the Scientific Advisory Committee to advance into the phase of preliminary engineering design. We discuss the detector technologies commonly employed at the existing similar instruments and their major challenges for ESS. The detector technologies selected by the instrument teams to collect the diffraction patterns are also presented. Analytical calculations, Monte-Carlo simulations, and real experimental data are used to develop a generic method to estimate the event rate in the diffraction detectors. We apply this method to make predictions for the future diffraction instruments, and thus provide additional information that can help the instrument teams with the optimisation of the detector designs.

Place, publisher, year, edition, pages
2017. Vol. 12, no 1, P01019
Keyword [en]
Instrumentation for neutron sources, Neutron detectors (cold, thermal, fast neutrons), Neutron diffraction detectors
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:miun:diva-30357DOI: 10.1088/1748-0221/12/01/P01019ISI: 000395769600019Scopus ID: 2-s2.0-85012075604OAI: oai:DiVA.org:miun-30357DiVA: diva2:1077539
Available from: 2017-02-28 Created: 2017-02-28 Last updated: 2017-04-24Bibliographically approved

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CiteExportLink to record
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Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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