Abstract—
A passive neutron dosemeter (PND) for high-energy accelerators is described. The slide of the DVGN-01 personal dosemeter, which is placed at the center of a polyethylene moderator, is used as a thermal-neutron detector. The moderator includes a lead insert, which increases the sensitivity of the dosemeter to high-energy neutrons, and a cadmium filter. Optimization calculations of the dosemeter design parameters have been performed with respect to the energy dependence of the response in the range from the thermal energy to 1 GeV. The results of the calculations are in good agreement with the experimental data obtained in low-energy neutron reference fields. Comparative measurements using the PND and a low-energy passive dosemeter have been performed in the neutron fields outside the shield of the 70-GeV U-70 proton accelerator at the Institute for High Energy Physics.
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This work was supported by the Ministry of Science and Higher Education of the Russian Federation under the Agreement on the provision of subsidies no. 075.15.2019.1393 dated June 27, 2019, agreement identifier RFMEFI60717X0193.
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Translated by N. Goryacheva
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Mamaev, A.M., Peleshko, V.N., Savitskaya, E.N. et al. A Passive Neutron Dosemeter for High Energy Accelerators. Instrum Exp Tech 63, 154–160 (2020). https://doi.org/10.1134/S0020441220020104
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DOI: https://doi.org/10.1134/S0020441220020104