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Neutron activation and prompt gamma intensity in Ar/CO2-filled neutron detectors at the European Spallation Source
Hungaritm Acad Sci, Ctr Energy Res, Budapest, Hungary.
European Spallat Source ESS ERIC, Lund.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design. European Spallat Source ESS ERIC, Lund.ORCID iD: 0000-0003-3221-2086
Hungaritm Acad Sci, Ctr Energy Res, Budapest, Hungary.
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2017 (English)In: Applied Radiation and Isotopes, ISSN 0969-8043, E-ISSN 1872-9800, Vol. 128, p. 275-286Article in journal (Refereed) Published
Abstract [en]

Monte Carlo simulations using MCNP6.1 were performed to study the effect of neutron activation in Ar/CO2 neutron detector counting gas. A general MCNP model was built and validated with simple analytical calculations. Simulations and calculations agree that only the Ar-40 activation can have a considerable effect. It was shown that neither the prompt gamma intensity from the Ar-40 neutron capture nor the produced Ar-41 activity have an impact in terms of gamma dose rate around the detector and background level.

Place, publisher, year, edition, pages
2017. Vol. 128, p. 275-286
Keyword [en]
ESS, Neutron detector, B4C, Neutron activation, Ar-41, MCNP, Monte Carlo simulation
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-31880DOI: 10.1016/j.apradiso.2017.06.003ISI: 000410016200041PubMedID: 28755548Scopus ID: 2-s2.0-85026243651OAI: oai:DiVA.org:miun-31880DiVA, id: diva2:1150031
Available from: 2017-10-17 Created: 2017-10-17 Last updated: 2017-12-18Bibliographically approved

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