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A polyethylene-B4C based concrete for enhanced neutron shielding at neutron research facilities

DiJulio, D. D. LU ; Cooper-Jensen, C. P. LU ; Perrey, H. LU ; Fissum, K. LU ; Rofors, E. LU ; Scherzinger, J. LU and Bentley, P. M. LU (2017) In Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 859. p.41-46
Abstract

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... (More)

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.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Geant4, Neutron science, Neutron shielding, Spallation neutron sources
in
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
volume
859
pages
6 pages
publisher
Elsevier
external identifiers
  • scopus:85017115398
  • wos:000402464700007
ISSN
0168-9002
DOI
10.1016/j.nima.2017.03.064
language
English
LU publication?
yes
id
c0bf2fd9-69d3-484d-bac3-f62175221e1d
date added to LUP
2017-04-22 20:49:15
date last changed
2017-09-18 13:32:55
@article{c0bf2fd9-69d3-484d-bac3-f62175221e1d,
  abstract     = {<p>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 B<sub>4</sub>C 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.</p>},
  author       = {DiJulio, D. D. and Cooper-Jensen, C. P. and Perrey, H. and Fissum, K. and Rofors, E. and Scherzinger, J. and Bentley, P. M.},
  issn         = {0168-9002},
  keyword      = {Geant4,Neutron science,Neutron shielding,Spallation neutron sources},
  language     = {eng},
  month        = {07},
  pages        = {41--46},
  publisher    = {Elsevier},
  series       = {Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment},
  title        = {A polyethylene-B<sub>4</sub>C based concrete for enhanced neutron shielding at neutron research facilities},
  url          = {http://dx.doi.org/10.1016/j.nima.2017.03.064},
  volume       = {859},
  year         = {2017},
}