Abstract
The results of modeling and optimization of a composite scintillator for recording thermal neutrons are presented. The interaction of thermal neutrons and γ-quanta with composites consisting of fragments of a glass scintillator containing 6Li was observed. The aim of the research was to determine the structure of a composite with high sensitivity to thermal neutrons and to provide effective suppression of signals from γ‑quanta. During the simulation, the optimal structural parameters of the composite were determined, such as the size of the fragments and the concentration of glass. According to the presented simulation results, optimized composites under thermal neutron irradiation can provide a neutron detection efficiency of at least 50% with a sensitivity to γ-quanta at the level η < 10–6.
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REFERENCES
Kuzmin, E.S., Bokuchava, G.D., Zimin, I.Yu., Kruglov, A.A., Kuchinskiy, N.A., and Malyshev, V.L., Instrum. Exp. Tech., 2021, vol. 64, no. 2, p. 195. https://doi.org/10.1134/S0020441221010279
Favalli, A., Iliev, M.L., Chung, K., Hurlbut, C., Martinez, H.P., Swinhoe, M.T., Zaitseva, N.P., and Ianakiev, K.D., IEEE Trans. Nucl. Sci., 2013, vol. 60, p. 1053. https://doi.org/10.1109/TNS.2013.2251900
Ziegler, J.F., Ziegler, M., and Biersack, J., Nucl. Instrum. Methods Phys. Res., Sect. B, 2010, vol. 268, p. 1818. https://doi.org/10.1016/j.nimb.2010.02.091
Ianakiev, K.D., Hehlen, M.P., Swinhoe, M.T., Favalli, A., Iliev, M.L., Lin, T.C., Bennett, B.L., and Barker, M.T., Nucl. Instrum. Methods Phys. Res., Sect. A, 2015, vol. 784, p. 189. https://doi.org/10.1016/j.nima.2014.10.073
Rich, G.C., Kazkaz, K., Martinez, H.P., and Gushue, T., Nucl. Instrum. Methods Phys. Res., Sect. A, 2015, vol. 794, p. 15. https://doi.org/10.1016/j.nima.2015.05.004
Mayer, M.F., Nattress, J., Trivelpiece, C., and Jovanovic, I., Nucl. Instrum. Methods Phys. Res., Sect. A, 2015, vol. 784, p. 168. https://doi.org/10.1016/j.nima.2014.09.023
Kazkaz, K., Bowden, N.S., and Pedretti, M., IEEE Trans. Nucl. Sci., 2013, vol. 60, p. 1416. https://doi.org/10.1109/TNS.2013.2249528
Shi, T., Nattress, J., Mayer, M., Lin, M.W., and Jovanovic, I., Nucl. Instrum. Methods Phys. Res., Sect. A, 2016, vol. 839, p. 86. https://doi.org/10.1016/j.nima.2016.09.041
Mayer, M., Nattress, J., Kukharev, V., Foster, A., Meddeb, A., Trivelpiece, C., Ounaies, Z., and Jovanovic, I., Nucl. Instrum. Methods Phys. Res., Sect. A, 2015, vol. 785, p. 117. https://doi.org/10.1016/j.nima.2015.03.014
Chernukhin, Y.I., Yudov, A.A., and Streltsov, S.I., Nucl. Energy Technol., 2015, vol. 1, p. 130. https://doi.org/10.1016/j.nucet.2016.01.005
Foster, A., Meddeb, A., Wilhelm, K., Nattress, J., Ounaies, Z., and Jovanovic, I., Nucl. Instrum. Methods Phys. Res., Sect. A, 2018, vol. 905, p. 29. https://doi.org/10.1016/J.NIMA.2018.07.018
Wiggins, B.W., Favalli, A., Iliev, M.L., Ianakiev, K.D., and Hehlen, M.P., Nucl. Instrum. Methods Phys. Res., Sect. A, 2019, vol. 915, p. 17. https://doi.org/10.1016/j.nima.2018.10.165
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Kuzmin, E.S., Zimin, I.Y. Optimization of the Structure of a Heterogeneous Scintillator for Registration of Thermal Neutrons. Instrum Exp Tech 64, 657–662 (2021). https://doi.org/10.1134/S0020441221050201
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DOI: https://doi.org/10.1134/S0020441221050201