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Information × Registration Number 0124U000837, ( 0225U002547  0226U002860  ) R & D request Title Highly efficient detectors of fast neutrons for demining systems based on the principle of neutron backscattering Head Lytovchenko Serhii V., Доктор технічних наук Registration Date 26-01-2024 Organization V.N. Karazin Kharkiv National University popup.description1 The aim of the work is to solve the problem of increasing the efficiency of registration and sensitivity of fast neutron detectors based on oxide scintillators, due to the use of a combination of several mechanisms of neutron energy conversion in the substance of the oxide scintillator (i.e., the combined action of inelastic neutron scattering and their resonance capture). The main tasks to be solved are the following: - development and production of a gamma-neutron discriminator; - development and production of an electronic neutron flow intensity recorder; - modeling of scattered neutron fields from irradiated objects using the Monte method Carlo in order to optimize the "detector-sample-neutron source" system in relation to reduction of the influence of background gamma quanta during the detection of the studied samples; - estimation according to the statistical model of the energy of scattered neutrons producing cascade gamma quanta; - measurements of the intensities of backscattered neutrons in high-energy and resonant regions from the samples under study in order to optimize the choice of the type of scintillators; - evaluation of scintillator parameters from the point of view of optimal efficiency and sensitivity to backscattered fast neutrons from the studied samples. popup.nrat_date 2024-12-09 Close