miun.sePublikasjoner
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Investigation of background in large-area neutron detectors due to alpha emission from impurities in aluminium
Thin Film Physics Division, IFM, Linköping University, Linköping, Sweden.ORCID-id: 0000-0003-3221-2086
Institute Laue Langevin, 71 avenue des Martyrs, Grenoble, France.
Institute Laue Langevin, 71 avenue des Martyrs, Grenoble, France.
Institute Laue Langevin, 71 avenue des Martyrs, Grenoble, France.
Vise andre og tillknytning
2015 (engelsk)Inngår i: Journal of Instrumentation, ISSN 1748-0221, E-ISSN 1748-0221, Vol. 10, nr 10, artikkel-id P10019Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Thermal neutron detector based on films of 10B4C have been developed as an alternative to 3He detectors. In particular, The Multi-Grid detector concept is considered for future large area detectors for ESS and ILL instruments. An excellent signal-to-background ratio is essential to attain expected scientific results. Aluminium is the most natural material for the mechanical structure of of the Multi-Grid detector and other similar concepts due to its mechanical and neutronic properties. Due to natural concentration of α emitters, however, the background from α particles misidentified as neutrons can be unacceptably high. We present our experience operating a detector prototype affected by this issue. Monte Carlo simulations have been used to confirm the background as α particles. The issues have been addressed in the more recent implementations of the Multi-Grid detector by the use of purified aluminium as well as Ni-plating of standard aluminium. The result is the reduction in background by two orders of magnitude. A new large-area prototype has been built incorporating these modifications.

sted, utgiver, år, opplag, sider
2015. Vol. 10, nr 10, artikkel-id P10019
Emneord [en]
Gaseous detectors, Instrumentation for neutron sources, Materials for gaseous detectors, Neutron detectors (cold, thermal, fast neutrons)
HSV kategori
Identifikatorer
URN: urn:nbn:se:miun:diva-26714DOI: 10.1088/1748-0221/10/10/P10019ISI: 000367674700021Scopus ID: 2-s2.0-84947266821Lokal ID: STCOAI: oai:DiVA.org:miun-26714DiVA, id: diva2:885918
Tilgjengelig fra: 2015-12-21 Laget: 2015-12-21 Sist oppdatert: 2017-12-01bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekstScopus

Personposter BETA

Birch, JHall-Wilton, R

Søk i DiVA

Av forfatter/redaktør
Birch, JHall-Wilton, R
Av organisasjonen
I samme tidsskrift
Journal of Instrumentation

Søk utenfor DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 381 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf