Abstract
Aspects of the experimental implementation of the small-angle neutron scattering (SANS) method on a compact neutron source are considered. A scientific justification of the demand for this type of installation is formulated. A scheme for implementing the SANS method on a pulsed neutron source is proposed, which ensures the high efficiency of using a neutron beam by limiting the operating wavelength range, and, as a result, maximizing the frequency and time-averaged power/intensity of the source. The physical parameters of the key elements of the installation, such as the cold neutron moderator, the beam-chopper cascade, the collimation system, the sample unit and the wide-aperture position-sensitive detector, are described. It is shown that the small-angle scattering method can be implemented on a university-type pulsed neutron source.
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The work was supported by the Ministry of Science and Higher Education of the Russian Federation under Agreement no. 075-15-2022-830 dated May 27, 2022 (continuation of Agreement no. 075-15-2021-1358 dated October 12, 2021).
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Pavlov, K.A., Kovalenko, N.A., Azarova, L.A. et al. Small-Angle Neutron Scattering Instrument for the DARIA Compact Neutron Source. J. Surf. Investig. 17, 810–817 (2023). https://doi.org/10.1134/S1027451023040134
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DOI: https://doi.org/10.1134/S1027451023040134