https://elib.bsu.by:443/handle/123456789/297993 NPCS Vol.25, no.2 (2022), pp. 104-206 Mon, 20 Apr 2026 19:07:09 GMT 2026-04-20T19:07:09Z https://elib.bsu.by:443/handle/123456789/298023 Заглавие документа: A Nonrelativistic Approximation for Energy Spectrum of a Vector Particle with Anomalous Magnetic Moment in the Coulomb Field Авторы: Kudryashov, V. V. Аннотация: Recently, transition to the nonrelativistic limit was performed for the simplified description of a vector particle with anomalous magnetic moment in the Coulomb field. The problem was reduced to a single radial second order equation in the case of a minimal value of the total angular momentum. However, the exact energy spectrum was not obtained. In the present paper, the quantization rule within the framework of the WKB approximation modified by Langer is used. This approximation gives the exact expression for the energy in the Coulomb problem without anomalous magnetic moment. The dependence of discrete energy levels on anomalous magnetic moment is presented. Sat, 01 Jan 2022 00:00:00 GMT https://elib.bsu.by:443/handle/123456789/298023 2022-01-01T00:00:00Z https://elib.bsu.by:443/handle/123456789/298022 Заглавие документа: On the Question of Hunting Optimization Авторы: Kashchenko, S. A.; Plyshevskaya, S. P.; Tolbey, A. O. Аннотация: This paper investigates the dynamics of the number of specimens in an isolated population living in a heterogeneous environment under the hunting influence. The conclusions regarding optimization of the hunting process are formulated. They are based on the results of the asymptotic analysis of the steady-state operating conditions. Sat, 01 Jan 2022 00:00:00 GMT https://elib.bsu.by:443/handle/123456789/298022 2022-01-01T00:00:00Z https://elib.bsu.by:443/handle/123456789/298019 Заглавие документа: Assessment of Radioactive Aerosol Wet Precipitation at the NPP Industrial Site Авторы: Orlovskaya, V. I.; Trifonov, A. G. Аннотация: The article presents a model for assessing wet deposition of aerosol substances by a dropping liquid and the results of simulation for aerosol particle plume dispersion on the territory of nuclear power plant industrial site, taking into account wet deposition. As sources of droplet liquid, atmospheric condensation in the form of rain and vapor-drop emissions from cooling towers are considered. The principal mechanisms of aerosol interaction with the liquid drops in the surface layer of the atmosphere are analyzed. The aerosol transfer equation has been corrected taking into account analytical and experimental data on the interaction of a liquid drops with aerosol suspensions. The numerical solution for a complete system of conservation equations with the corresponding closing relations is performed by developed computer code. Resulting, the evaluation of radioactive substances wet deposition on the characteristic surfaces of the NPP site in emergency situations was obtained. Sat, 01 Jan 2022 00:00:00 GMT https://elib.bsu.by:443/handle/123456789/298019 2022-01-01T00:00:00Z https://elib.bsu.by:443/handle/123456789/298015 Заглавие документа: Low Enrichment Nuclear Fuel Based on Uranium-Zirconium Carbonitride: Reactor Tests and Preparation for Studies at Critical Assemblies Авторы: Sikorin, S. N.; Kuzmin, A. V.; Mandzik, S. G.; Polazau, S. A.; Hryharovich, T. K. Аннотация: Uranium-zirconium carbonitride has been developed at the Federal State Unitarian Enterprise Scientific Research Institute the Scientific Industrial Association “Luch” (LUCH FSUE) and is a high-density high-temperature fuel with high heat conductivity capable of being used in various types of reactors, including fast reactors. The main problem hindering wide application of this fuel is insufficient knowledge of its behavior under irradiation, especially at high burnup. In the USSR, HEU UZrCN (96% by U-235) fuel underwent reactor testing to a low burnup of approximately 1%. However, to confirm practical applicability of this fuel, the fuel needs to be reactor tested at a high burnup. In the framework of a joint Belarussian-American-Russian effort, LEU (19.75% by U-235) UZrCN fuel will undergo reactor testing to a burnup of approximately 40% in the SM-3 reactor at the Joint Stock Company “State Scientific Center Research Institute of Atomic Reactors” (JSC “SSC RIAR”). To conduct the prolonged reactor experiment, an irradiating device with an experimental capsule containing UZrCN pellets has been made, neutronic analysis and thermophysical analysis have been carried out and a programme of pre-irradiation experiments has been implemented. In June 2019 a methodical experiment was carried out in the SM-3 reactor at the JSC “SSC RIAR” in order to confirm operability of the irradiating device developed. Testing of the irradiating device and refinement of the prolonged irradiation experiment procedure were carried out at cell 11 of the reflector of the SM-3 reactor at the JSC “SSC RIAR”. The period of irradiation equaled 23.3 effective days. The mean power density in the tested pellets throughout the methodical reactor testing was 516 W/cm3. Burnup achieved for the pellets studied was 0.63% FIFA. The “Giacint” and “Kristal”, critical facilities of the State Scientific Institution “The Joint Institute for Power and Nuclear Research - Sosny” (the Scientific Institution “JIPNR – Sosny”) will be used for studying neutronic characteristics of critical and subcritical fast assemblies simulating the physical particulars of the cores of advanced gas- or liquid metal cooled fast reactor systems and accelerator driven systems. This paper provides a detailed description of the results of preparatory works for conducting the reactor testing and the results of the methodical reactor experiment. Also the experimental programme and the descriptions of the design and composition of the fast critical assemblies with UZrCN fuel are presented. Sat, 01 Jan 2022 00:00:00 GMT https://elib.bsu.by:443/handle/123456789/298015 2022-01-01T00:00:00Z