Abstract
A concept of a project of compact neutron source (CNS), dedicated for academical research and industrial application (DARIA), is presented. Several versions of neutron source optimization aimed at increasing the neutron flux and luminosity on a sample are considered. A new approach aimed at designing CNS DARIA is formulated: from a sample to a proton source. Thus, with allowance for the real physical and technical limitations, all CNS elements (proton accelerator, target–moderator–reflector (TMR) assembly, moderators, and neutron stations) are optimized as a whole, and each channel leading to the neutron scattering system is optimized separately as well. The complex of neutron systems includes an inverse-geometry spectrometer, an epithermal diffractometer, a system of small-angle neutron scattering (SANS), and a multispectral diffractometer. The results of calculating the TMR assembly are presented. Starting points for further optimization are established. The advantages and drawbacks of pulsed and cw linear accelerators are described, and the optimal parameters of proton accelerator for CNS DARIA are chosen.
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ACKNOWLEDGMENTS
We are grateful to E.S. Klement’ev, M.V. Bulavin, K.A. Mukhin, and many other researchers from the Immanuel Kant Baltic Federal University, JINR, ITEP NRC KI, and IPF RAS for the help in work and for supplying necessary materials.
Funding
This study was supported by the Russian Science Foundation (grant no. 19-12-00363).
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Translated by Yu. Sin’kov
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Pavlov, K.A., Konik, P.I., Kovalenko, N.A. et al. Compact Neutron Sources for Condensed-Matter Physics in Russia and Abroad: State of Affairs and Prospects. Crystallogr. Rep. 67, 3–17 (2022). https://doi.org/10.1134/S1063774522010096
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DOI: https://doi.org/10.1134/S1063774522010096