First beams at neutrons for science

Ledoux, X.; Foy, Jean-Claude; Ducret, J. E.; Frelin, Anne-Marie; Ramos, D.; Mrázek, J.; Šiméčková, E.; Běhal, R.; Cáceres, L.; Глаголев, В. В.; Jacquot, B.; Lemasson, A.; Pancin, J.; Piot, J.; Stödel, C.; Vandebrouck, M.

doi:10.1140/epja/s10050-021-00565-x

Cited by 17 publications

(11 citation statements)

References 20 publications

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“…Several advances in scattering techniques inspired the interest in neutron science, which provides different applications in areas such as chemistry, physics, biology, medicine and engineering research. These advances are strongly dependent on detector developments, which has also grown in the last years, along with the capability to obtain bright monochromatic neutron sources, whether in large or small facilities [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…The 3 He proportional counter is one of the most widely used type of neutron detectors, still widely used. Beyond its historical tradition, it presents several advantages, such as the large neutron capture cross-section (𝜎 = 5325 b for 25 meV [5]), low sensitivity to gamma-rays, and the possibility of working on a wide neutron energy range in the low energy region [1].…”

Section: Introductionmentioning

confidence: 99%

“…Beyond its historical tradition, it presents several advantages, such as the large neutron capture cross-section (𝜎 = 5325 b for 25 meV [5]), low sensitivity to gamma-rays, and the possibility of working on a wide neutron energy range in the low energy region [1]. However, due to a shortage of this gas since the early 2000s [6], the scientific community keeps searching for alternative solutions with 3 He-free detectors [7], employing 113 Cd , 157 Gd , 10 B, and 6 Li [8][9][10][11][12] as neutron converters. Nevertheless, substituting 3 He has the price of reducing the neutron detection efficiency or increasing the detection complexity.…”

Section: Introductionmentioning

confidence: 99%

“…However, due to a shortage of this gas since the early 2000s [6], the scientific community keeps searching for alternative solutions with 3 He-free detectors [7], employing 113 Cd , 157 Gd , 10 B, and 6 Li [8][9][10][11][12] as neutron converters. Nevertheless, substituting 3 He has the price of reducing the neutron detection efficiency or increasing the detection complexity.…”

Section: Introductionmentioning

confidence: 99%

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Double-GEM based thermal neutron detector prototype

Filho¹,

Santos²,

Souza³

et al. 2022

Preprint

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A: The Helium-3 shortage and the growing interest in neutron science constitute a driving factor in developing new neutron detection technologies. In this work, we report the development of a double-GEM detector prototype that uses a 10 B 4 C layer as a neutron converter material. GEANT4 simulations were performed predicting an efficiency of 3.14(10) %, agreeing within 1.6 𝜎 with the experimental and analytic detection efficiencies obtained by the detector when tested in a 41.8 meV thermal neutron beam. The detector is position sensitive, equipped with a 256+256 strip readout connected to resistive chains, and achieves a spatial resolution better than 3 mm. The gain stability over time was also measured with a fluctuation of about 0.2 % h −1 of the signal amplitude. A simple data acquisition with only 5 electronic channels is sufficient to operate this detector.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Double-GEM based thermal neutron detector prototype

Filho¹,

Santos²,

Souza³

et al. 2022

Preprint

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“…The consortium has several new or upgraded facilities: the Neutrons for Science facility (NFS) at GANIL, Caen, is the first operational area at the SPIRAL-2 LINAC [2]. It provides high-intensity fast neutron beams up 40 MeV using a deuteron beam on a thick converter target with a maximum source strength of up to 1.8 × 10 13 n/s using a 4−30 m flight path.…”

Section: Introductionmentioning

confidence: 99%

ARIEL & SANDA nuclear data activities

Franzen

Junghans

González

et al. 2022

EPJ Nuclear Sci. Technol.

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Nuclear data are fundamental quantities for developing nuclear energy concepts and research. They are essential for the simulation of nuclear systems, safety and performance calculations, and reactor instrumentation. Nuclear data improvement requires a combination of many different know-hows that are distributed over many institutions along Europe. In the EURATOM call for Nuclear Fission and Radiation Protection NFRP-2018, two nuclear data projects were started in September 2019: the Coordination and Support Action ARIEL (Accelerator and Research reactor Infrastructures for Education and Learning) and the Research and Innovation Action SANDA (Solving Challenges in Nuclear Data for the Safety of European Nuclear facilities). The ARIEL project integrates education and training of young scientists and technicians with access to neutron beam research infrastructures and supports scientific visits to conduct short-term research projects relevant to thesis works. The SANDA project is focuses on research innovation actions, including detector and nuclear target development, important nuclear data measurements, nuclear data evaluation, and validation. A description of these ongoing projects, including the first results, is the subject of this article.

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Modeling of Deuteron-Induced Reactions on Molybdenum at Low Energies

Avrigeanu,

Šimečková,

Mrázek

et al. 2024

J Fusion Energ

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The activities of the EUROfusion consortium on the development of high quality nuclear data for fusion applications include evaluations of deuteron induced reactions and related data libraries for needs of the DEMO fusion power plant and IFMIF-DONES neutron-source nuclear analyses. Molybdenum is one of the major constituents of the reference stainless steels used in critical components of these projects. While the TENDL deuteron data library was the current reference used by EUROfusion, need of its further improvement has already been pointed out. The weak binding energy of the deuteron is responsible for the high complexity of its interaction with nuclei, involving also a variety of reactions initiated by the nucleons following the deuteron breakup. Their analysis completed that of the deuteron interactions with Mo and its stable isotopes, from elastic scattering to pre-equilibrium and compound–nucleus reactions, up to 50 MeV. A particular attention has been paid to the breakup, stripping, and pick-up direct interactions which amount to around half of the deuteron total–reaction cross section. The due account of most experimental data has validated the present approach, highlighted some prevalent features, and emphasized weak points and consequently the need for modeling/evaluation upgrade.

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First beams at neutrons for science

Cited by 17 publications

References 20 publications

Double-GEM based thermal neutron detector prototype

Double-GEM based thermal neutron detector prototype

ARIEL & SANDA nuclear data activities

Modeling of Deuteron-Induced Reactions on Molybdenum at Low Energies

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