Study of neutron quasi-specular reflection from powder of diamond nanoparticles as a function of the nanoparticle size
Due to the enhanced coherent reflection, neutrons are efficiently scattered on powders of diamond nano-partciles. One application of this phenomenon is quasi-specular reflection from the powder surface at small grazing angles. We have discoved this phenomenon in an experiment at D17 instrument at ILL and improved the performance by fluorinating nanodiamonds, thus removing hydrogen-related losses [V.V. Nesvizhevsky, et al, Phys. Rev. A 97 (2018) 023629]. Further improvement is expected to come from the optimization of particle sizes as confirmed by preliminary measurements. We apply for 20 hours of beam-time to complement this study and get data needed for a publication. The experiment will be performed using the same method, in the same geometry. We have 7 samples ready; the time needed for the statistics taking and the sample change is about 2 hours. Plus test measurements.
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NESVIZHEVSKY Valery and SAERBECK Thomas. (2021). Study of neutron quasi-specular reflection from powder of diamond nanoparticles as a function of the nanoparticle size. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.EASY-977
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