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A polyethylene-B4C based concrete for enhanced neutron shielding at neutron research facilities
European Spallat Source ERIC, POB 176, SE-22100 Lund, Sweden.;Lund Univ, Div Nucl Phys, SE-22100 Lund, Sweden..
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics. European Spallat Source ERIC, POB 176, SE-22100 Lund, Sweden..
European Spallat Source ERIC, POB 176, SE-22100 Lund, Sweden.;Lund Univ, Div Nucl Phys, SE-22100 Lund, Sweden..
European Spallat Source ERIC, POB 176, SE-22100 Lund, Sweden.;Lund Univ, Div Nucl Phys, SE-22100 Lund, Sweden..
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2017 (English)In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 859, 41-46 p.Article in journal (Refereed) Published
Abstract [en]

We present the development of a specialized concrete for neutron shielding at neutron research facilities, based on the addition of hydrogen atoms in the form of polyethylene and also B4C for enhancing the neutron capture properties of the concrete. We show information on the mechanical properties of the concrete and the neutronics, in particular its relevance to modern spallation neutron sources, such as the European Spallation Source (ESS), currently under construction in Lund, Sweden. The new concrete exhibits a 15% lower mass density, a compressible strength of 50% relative to a standard concrete and a significant increase in performance of shielding against MeV neutrons and lower energies. The concrete could find application at the ESS in for example common shielding components, individual beamline shielding and instrument caves. Initial neutronic tests of the concrete, carried out at Lund University, have also verified the performance in the MeV neutron energy range and the results are presented.

Place, publisher, year, edition, pages
2017. Vol. 859, 41-46 p.
Keyword [en]
Neutron shielding, Spallation neutron sources, Neutron science, Geant4
National Category
Accelerator Physics and Instrumentation
Identifiers
URN: urn:nbn:se:uu:diva-326488DOI: 10.1016/j.nima.2017.03.064ISI: 000402464700007OAI: oai:DiVA.org:uu-326488DiVA: diva2:1141620
Funder
EU, Horizon 2020, 654000
Available from: 2017-09-15 Created: 2017-09-15 Last updated: 2017-09-15Bibliographically approved

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Cooper-Jensen, Carsten P.Bentley, Phillip M.

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Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Accelerator Physics and Instrumentation

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