Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

High-energy in-beam neutron measurements of metal-based shielding for accelerator-driven spallation neutron sources

Dijulio, D. D. LU ; Cooper-Jensen, C. P. LU ; Björgvinsdóttir, H. LU ; Kokai, Z. and Bentley, P. M. LU (2016) In Physical Review Accelerators and Beams 19(5).
Abstract

Metal-based shielding plays an important role in the attenuation of harmful and unwanted radiation at an accelerator-driven spallation neutron source. At the European Spallation Source, currently under construction in Lund, Sweden, metal-based materials are planned to be used extensively as neutron guide substrates in addition to other shielding structures around neutron guides. The usage of metal-based materials in the vicinity of neutron guides however requires careful consideration in order to minimize potential background effects in a neutron instrument at the facility. Therefore, we have carried out a combined study involving high-energy neutron measurements and Monte Carlo simulations of metal-based shielding, both to validate the... (More)

Metal-based shielding plays an important role in the attenuation of harmful and unwanted radiation at an accelerator-driven spallation neutron source. At the European Spallation Source, currently under construction in Lund, Sweden, metal-based materials are planned to be used extensively as neutron guide substrates in addition to other shielding structures around neutron guides. The usage of metal-based materials in the vicinity of neutron guides however requires careful consideration in order to minimize potential background effects in a neutron instrument at the facility. Therefore, we have carried out a combined study involving high-energy neutron measurements and Monte Carlo simulations of metal-based shielding, both to validate the simulation methodology and also to investigate the benefits and drawbacks of different metal-based solutions. The measurements were carried out at The Svedberg Laboratory in Uppsala, Sweden, using a 174.1 MeV neutron beam and various thicknesses of aluminum-, iron-, and copper-based shielding blocks. The results were compared to Geant4 simulations and revealed excellent agreement. Our combined study highlights the particular situations where one type of metal-based solution may be preferred over another.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Accelerators and Beams
volume
19
issue
5
article number
053501
publisher
American Physical Society
external identifiers
  • scopus:85011067136
ISSN
2469-9888
DOI
10.1103/PhysRevAccelBeams.19.053501
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2016, American Physical Society. All rights reserved.
id
109d8ad1-d561-40e9-854a-dc80af2f6894
date added to LUP
2022-03-31 13:31:57
date last changed
2022-04-08 05:48:38
@article{109d8ad1-d561-40e9-854a-dc80af2f6894,
  abstract     = {{<p>Metal-based shielding plays an important role in the attenuation of harmful and unwanted radiation at an accelerator-driven spallation neutron source. At the European Spallation Source, currently under construction in Lund, Sweden, metal-based materials are planned to be used extensively as neutron guide substrates in addition to other shielding structures around neutron guides. The usage of metal-based materials in the vicinity of neutron guides however requires careful consideration in order to minimize potential background effects in a neutron instrument at the facility. Therefore, we have carried out a combined study involving high-energy neutron measurements and Monte Carlo simulations of metal-based shielding, both to validate the simulation methodology and also to investigate the benefits and drawbacks of different metal-based solutions. The measurements were carried out at The Svedberg Laboratory in Uppsala, Sweden, using a 174.1 MeV neutron beam and various thicknesses of aluminum-, iron-, and copper-based shielding blocks. The results were compared to Geant4 simulations and revealed excellent agreement. Our combined study highlights the particular situations where one type of metal-based solution may be preferred over another.</p>}},
  author       = {{Dijulio, D. D. and Cooper-Jensen, C. P. and Björgvinsdóttir, H. and Kokai, Z. and Bentley, P. M.}},
  issn         = {{2469-9888}},
  language     = {{eng}},
  number       = {{5}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Accelerators and Beams}},
  title        = {{High-energy in-beam neutron measurements of metal-based shielding for accelerator-driven spallation neutron sources}},
  url          = {{http://dx.doi.org/10.1103/PhysRevAccelBeams.19.053501}},
  doi          = {{10.1103/PhysRevAccelBeams.19.053501}},
  volume       = {{19}},
  year         = {{2016}},
}