IFMIF-DONES concrete neutron shielding benchmarks

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CHOHAN, Haridev, ANSORGE, Martin, QIU, Yuefeng, PIOTROWSKI, Tomasz, MARTÍNEZ-ECHEVARRÍA ROMERO, María José, WONG, Ocean, KODELI, Ivan, NEILSON, Joseph, LENNON, Kimberley, SMITH, Robin, BĚHAL, Radomír, CASSISA, Anastasia, GLAGOLEV, Vadim, KOLIADKO, Daniil, KOZIC, Ján, MRÁZEK, Jaromír, NOVÁK, Jan, ŠIMEČKOVÁ, Eva, ŠTEFÁNIK, Milan, GROVE, Callum, GERMANY, Timothy, EADE, Tim, GILBERT, Mark, SHAND, Chantal and HARTE, Allan (2026). IFMIF-DONES concrete neutron shielding benchmarks. Fusion Engineering and Design, 230: 115914. [Article]

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Abstract
Experiments have been performed to qualify the radiation shielding performance of concrete for the test cell of the IFMIF-DONES (International Fusion Materials Irradiation Facility - Demo Oriented NEutron Source) facility. A mock-up of ordinary concrete (OC) with local lime-dolomite aggregate was prepared, representing the structural concrete. Also, a mock-up of heavy concrete (HC) with magnetite aggregate was prepared, representing the radiation shielding concrete, particularly for removable biological shielding blocks inside the test cell. These mock-ups were irradiated by neutrons with a continuous energy spectrum up to 33 MeV using a fast neutron generator at the U-120M cyclotron facility at the Nuclear Physics Institute of the Czech Academy of Sciences, Řež. Activation foils were used for neutron diagnostics and were positioned throughout the mock-ups. There were five foil materials used: Au, In, Fe, Ti and Al. Gamma spectrometry of the foils was performed at the experimental site to measure the activities of the post-irradiation radionuclides. The experimental results are compared to calculated results obtained via radiation transport code modelling of the experiments and subsequent inventory code simulations of transmutation and activation. The comparison of calculated/experimental (C/E) results determines the confidence in the calculation methods to accurately represent the shielding performance of the concrete materials. Within the uncertainties, 100% of the OC results and 73% of the HC showed C/E agreement. Future calculations using these concretes should include safety factors of 2 and 3 for OC and HC respectively. The discrepancies for HC in particular should be considered in future calculations.
More Information
Official URL:
https://doi.org/10.1016/j.fusengdes.2026.115914
Uncontrolled Keywords:
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics; 0913 Mechanical Engineering; 0915 Interdisciplinary Engineering; Energy; 4017 Mechanical engineering; 4019 Resources engineering and extractive metallurgy

Identifiers

Identification Number:
10.1016/j.fusengdes.2026.115914
ORCID for Haridev Chohan: ORCID iD orcid.org/0000-0001-6412-0528
ORCID for Martin Ansorge: ORCID iD orcid.org/0000-0002-9820-6028
ORCID for Tomasz Piotrowski: ORCID iD orcid.org/0000-0002-2547-7601
ORCID for Ocean Wong: ORCID iD orcid.org/0000-0001-8561-5554
ORCID for Joseph Neilson: ORCID iD orcid.org/0009-0007-9923-5107
ORCID for Kimberley Lennon: ORCID iD orcid.org/0009-0005-2186-9754
ORCID for Robin Smith: ORCID iD orcid.org/0000-0002-9671-8599
ORCID for Ján Kozic: ORCID iD orcid.org/0000-0002-2409-6153
ORCID for Eva Šimečková: ORCID iD orcid.org/0000-0002-7580-4121
ORCID for Callum Grove: ORCID iD orcid.org/0000-0002-3630-5637
ORCID for Chantal Shand: ORCID iD orcid.org/0000-0003-2259-8288

Library

Publisher:
Elsevier BV
Item Type:
Article
SWORD Depositor:
Symplectic Elements
Depositing User:
Symplectic Elements
Date record made live:
02 Jul 2026 09:59
Last Modified:
02 Jul 2026 10:00
Date of first compliant deposit:
1 July 2026
Date of first compliant Open Access:
2 July 2026
Version of first compliant deposit:
Version of Record
ISSN:
0920-3796
Volume:
230
URI:
https://shura.shu.ac.uk/id/eprint/37662
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