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Fast neutron sensitivity of neutron detectors based on Boron-10 converter layers
European Spallat Source ERIC Lund; Univ Perugia, Dept Phys, Perugia, Italy.
European Spallat Source ERIC Lund; Lund University, Lund.
European Spallat Source ERIC Lund.
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Avdelningen för elektronikkonstruktion. European Spallat Source ERIC Lund.ORCID-id: 0000-0003-3221-2086
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2018 (Engelska)Ingår i: Journal of Instrumentation, ISSN 1748-0221, E-ISSN 1748-0221, Vol. 13, nr 3, artikel-id P03004Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

In the last few years many detector technologies for thermal neutron detection have been developed in order to face the shortage of He-3, which is now much less available and more expensive. Moreover the He-3-based detectors can not fulfil the requirements in performance, e.g. the spatial resolution and the counting rate capability needed for the new instruments. The Boron-10-based gaseous detectors have been proposed as a suitable choice. This and other alternative technologies are being developed at ESS. Higher intensities mean higher signals but higher background as well. The signal-to-background ratio is an important feature to study, in particular the gamma-ray and the fast neutron contributions. This paper investigates, for the first time, the fast neutrons sensitivity of B-10-based thermal neutron detector. It presents the study of the detector response as a function of energy threshold and the underlying physical mechanisms. The latter are explained with the help of theoretical considerations and simulations.

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2018. Vol. 13, nr 3, artikel-id P03004
Nyckelord [en]
Gaseous detectors, Neutron detectors (cold, thermal, fast neutrons), Wire chambers (MWPC, Thin-gap chambers, drift chambers, drift tubes, proportional chambers etc)
Nationell ämneskategori
Elektroteknik och elektronik
Identifikatorer
URN: urn:nbn:se:miun:diva-33396DOI: 10.1088/1748-0221/13/03/P03004ISI: 000427007300004Scopus ID: 2-s2.0-85044992503OAI: oai:DiVA.org:miun-33396DiVA, id: diva2:1194489
Tillgänglig från: 2018-04-03 Skapad: 2018-04-03 Senast uppdaterad: 2018-05-15Bibliografiskt granskad

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Hall-Wilton, Richard

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