This title appears in the Scientific Report :
2023
Development of neutron reflectometry at a HiCANS: the HERMES instrument at the JULIC Neutron Platform
Development of neutron reflectometry at a HiCANS: the HERMES instrument at the JULIC Neutron Platform
High current Compact Accelerator-driven Neutron Sources (HiCANS) have risen as a possible answer to the drop in neutron availability in recent years due to the closure of various research reactors in Europe. Within this new trend, the Laboratoire Léon Brillouin (LLB) is currently evaluating the perf...
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Personal Name(s): | Paulin, Mariano Andrés |
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Pechenizkiy, Ivan / Zakalek, Paul / Lieutenant, Klaus / Kämmerling, Peter / Steffens, Alexander / Kleines, Harald / Rücker, Ulrich / Gutberlet, Thomas / Gautrot, Sébastien / Menelle, Alain / Ott, Frédéric | |
Contributing Institute: |
Streumethoden; JCNS-2 JARA-FIT; JARA-FIT High Brilliance Source; JCNS-HBS Streumethoden; PGI-4 |
Imprint: |
2023
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Conference: | 10th Annual Meeting of the Union for Compact Accelerator-driven Neutron Sources, Budapest (Hungary), 2023-10-16 - 2023-10-19 |
Document Type: |
Poster |
Research Program: |
Jülich Centre for Neutron Research (JCNS) (FZJ) Materials – Quantum, Complex and Functional Materials |
Publikationsportal JuSER |
High current Compact Accelerator-driven Neutron Sources (HiCANS) have risen as a possible answer to the drop in neutron availability in recent years due to the closure of various research reactors in Europe. Within this new trend, the Laboratoire Léon Brillouin (LLB) is currently evaluating the performance of neutron techniques around this novel type of source. HERMES [1] is a time-of-flight horizontal reflectometer that was operated by the LLB at the Orphée reactor [2] until 2019 and was mainly employed for soft-matter studies. Through a collaboration with the Jülich Centre for Neutron Science, HERMES was installed in 2022 at the JULIC neutron platform at Forschungszentrum Jülich. This platform is able to deliver neutron pulses in the 100 μs-2 ms range and is very well suited to evaluate the feasibility of reflectivity experiments at a HiCANS. Since its installation and first tests in 2022, several improvements have been planned and implemented at HERMES in order to exploit its maximum performance. Our current goal is to perform reflectivity experiments with supermirrors as a proof of concept, as the flux at the JULIC neutron platform is several orders of magnitude lower than the original Orphée flux or the one expected for a HiCANS. Nevertheless, Monte-Carlo simulations showed that an instrument as HERMES operating at a HiCANS could match the performance of similar instruments at medium power research reactors. This work is part of the collaboration within ELENA and LENS on the development of HiCANS. It has been funded by the "CANS Inflexion" program at the CEA and the "IPHI-Neutron" SESAME project of the Île de France region.[1] F. Cousin, F. Ott, F. Gibert, A. Menelle, Eur. Phys. J. Plus 126, 109 (2011)[2] B. Farnoux, D. Cribier, Phys. B+C 120, 31-36 (1983) |