miun.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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
  • html
  • text
  • asciidoc
  • rtf
Multi-Grid detector for neutron spectroscopy: Results obtained on time-of-flight spectrometer CNCS
European Spallation Source, Lund.
European Spallation Source, Lund.
Instrument and Source Division, Spallation Neutron Source, United States.
Linköping University.
Show others and affiliations
2017 (English)In: Journal of Instrumentation, ISSN 1748-0221, E-ISSN 1748-0221, Vol. 12, no 4, P04030Article in journal (Refereed) Published
Abstract [en]

The Multi-Grid detector technology has evolved from the proof-of-principle and characterisation stages. Here we report on the performance of the Multi-Grid detector, the MG.CNCS prototype, which has been installed and tested at the Cold Neutron Chopper Spectrometer, CNCS at SNS. This has allowed a side-by-side comparison to the performance of 3He detectors on an operational instrument. The demonstrator has an active area of 0.2 m2. It is specifically tailored to the specifications of CNCS. The detector was installed in June 2016 and has operated since then, collecting neutron scattering data in parallel to the He-3 detectors of CNCS. In this paper, we present a comprehensive analysis of this data, in particular on instrument energy resolution, rate capability, background and relative efficiency. Stability, gamma-ray and fast neutron sensitivity have also been investigated. The effect of scattering in the detector components has been measured and provides input to comparison for Monte Carlo simulations. All data is presented in comparison to that measured by the 3He detectors simultaneously, showing that all features recorded by one detector are also recorded by the other. The energy resolution matches closely. We find that the Multi-Grid is able to match the data collected by 3He, and see an indication of a considerable advantage in the count rate capability. Based on these results, we are confident that the Multi-Grid detector will be capable of producing high quality scientific data on chopper spectrometers utilising the unprecedented neutron flux of the ESS.

Place, publisher, year, edition, pages
2017. Vol. 12, no 4, P04030
Keyword [en]
Gaseous detectors, Instrumentation for neutron sources, Neutron detectors (cold, thermal, fast neutrons)
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:miun:diva-30963DOI: 10.1088/1748-0221/12/04/P04030ISI: 000405067800030Scopus ID: 2-s2.0-85019057332Local ID: STCOAI: oai:DiVA.org:miun-30963DiVA: diva2:1114051
Available from: 2017-06-22 Created: 2017-06-22 Last updated: 2017-09-04Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Authority records BETA

Hall-Wilton, Richard

Search in DiVA

By author/editor
Hall-Wilton, Richard
By organisation
Department of Electronics Design
In the same journal
Journal of Instrumentation
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 88 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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
  • html
  • text
  • asciidoc
  • rtf