Low energy accelerator-driven neutron facilities—A prospect for a brighter future for research with neutrons

Brückel, Thomas; Gutberlet, Thomas; Schmidt, Sebastian; Alba‐Simionesco, Christiane; Ott, F.; Menelle, A.

doi:10.1080/10448632.2020.1819125

Cited by 6 publications

(3 citation statements)

References 9 publications

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“…At first sight it might be surprising that the rather inefficient process of low energy nuclear reactions can produce neutron beams of such high brightness. As elaborated in [2], the main reasons are as follows:…”

Section: Introductionmentioning

confidence: 99%

The High Brilliance neutron Source (HBS): A project for a next generation neutron research facility

Brückel,

Gutberlet,

Baggemann

et al. 2023

EPJ Web Conf.

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The High Brilliance neutron Source (HBS) is a project for a next generation neutron research facility, based on new concepts and recent technological advancements. As elementary processes it uses neither fission nor spallation, but instead low energy nuclear reactions in a very compact Target-ModeratorReflector (TMR) assembly. Our facility design results in very efficient production of neutron beams with high brightness. Key features of HBS are: (i) very competitive instrument performance, (ii) comparatively low construction and operation costs, (iii) resilience, (iv) sustainability, (v) flexibility, (vi) accessibility and (vii) scalability. Here we present the basic layout of the facility, elaborate on the mentioned key features and report on the commissioning of a small test setup.

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Section: Introductionmentioning

confidence: 99%

The High Brilliance neutron Source (HBS): A project for a next generation neutron research facility

Brückel,

Gutberlet,

Baggemann

et al. 2023

EPJ Web Conf.

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“…Conventional neutron provision by nuclear reactors is serving this demand but the construction and maintenance of such large-scale research facilities are increasingly costly and time consuming. Therefore, neutron beam time is progressively secured by alternative routes, in particular accelerator-driven neutron sources (ADNS) as spallation neutron sources or compact accelerator-based neutron sources (CANS) [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…Low energy reactions (10-100 MeV) yield much fewer neutrons per incident proton than spallation processes ( ∼ 20-30 neutrons for spallation [10]). However, this inefficiency of the individual reaction is compensated by two factors: (i) the much higher flux of incident protons for the same beam power on the target and (ii) more neutron beam extraction due to the compact target-moderator-reflector (TMR) unit [4]. Moreover, CANS benefit from fewer shielding requirements, less waste and reasonable construction costs for the building to house it in [11].…”

Section: Introductionmentioning

confidence: 99%

Monte Carlo simulation of proton- and neutron-induced radiation damage in a tantalum target irradiated by 70 MeV protons

Ophoven

Mauerhofer

et al. 2021

Appl. Phys. A

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Beams of free neutrons are an important probe to analyze the structure and dynamics of condensed matter and are produced at neutron research reactors, neutron spallation sources or compact accelerator-based neutron sources (CANS). An efficient construction of CANS with a maximized neutron yield and brilliance requires reliable knowledge of the consequences of radiation-induced material damage, the predominating bottleneck of a target’s lifetime. In the framework of the Jülich High-Brilliance neutron Source project, the impact of proton- and neutron-induced material damage of a tantalum target was investigated. The Monte Carlo codes FLUKA and SRIM were utilized to extract the number of displacements per atom resulting from atomic rearrangements. The simulations performed distinctly identify the rear of the neutron target as the most vulnerable area, with the protons as main damage contributors. The minor contribution of neutrons is a material-specific phenomenon due to their high mean free path length in tantalum. Numerical results of the simulations served to calculate average and peak damage rates $${R}_{\mathrm{d}}$$ R d (dpa/s), both in turn scaled to annual displacement doses for continuous operation in a full power year (dpa/fpy). Supplemented by the literature, a minimum target lifetime $$\tau _{\min }$$ τ min of 2.6 years (33 Ah) is concluded.

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European research reactor strategy derived in the scope of the towards optimized use of research reactors (TOURR) project

Pungerčič,

Bécares,

Cano-Ott

et al. 2025

Annals of Nuclear Energy

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Low energy accelerator-driven neutron facilities—A prospect for a brighter future for research with neutrons

Cited by 6 publications

References 9 publications

The High Brilliance neutron Source (HBS): A project for a next generation neutron research facility

The High Brilliance neutron Source (HBS): A project for a next generation neutron research facility

Monte Carlo simulation of proton- and neutron-induced radiation damage in a tantalum target irradiated by 70 MeV protons

European research reactor strategy derived in the scope of the towards optimized use of research reactors (TOURR) project

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