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Information × Registration Number 0221U103356, 0115U001657 , R & D reports Title Investigation of neutron interaction with atomic nuclei at the reactor filtered beams and development of nuclear-constant base for fundamental and applied problems popup.stage_title Head Grytsay Olena O, Кандидат фізико-математичних наук Registration Date 18-02-2021 Organization Institute of Nuclear Research of the National Academy of Sciences of Ukraine popup.description2  Experimental studies of ещефд neutron cross sections of 52Cr at an average neutron energy of 145 keV were performed at the Kyiv Research Reactor using the filtered neutron technique. To obtain quasi-monoenergetic neutrons with an average energy of 145 keV, an interference filter was used, which contains the following components: Si (184.07 g/cm2), Ti (11.49 g/cm2), 10B (0.2 g/cm2). The calculated purity of the filter is 98.87% (calculations were performed using the software package Filter-7). Two series of measurements were performed experimentally. Each set used a set of 52Cr samples with thicknesses from 0.00383 +- 0.00001 to 0.03532 +- 0.00011 nuclei/b. To calculate the factors of resonance self-shielding, simulation was performed using the program MCNP 4c. Determination of unshielded total neutron cross sections of 52Cr was performed using three methods. A comparative analysis of our result with the results of other authors presented in the international experimental database EXFOR/CSISRS, and with data from evaluated nuclear data libraries was done. Compilations of experimental data obtained by Ukrainian scientists into the international experimental database CSISRS/EXFOR for incident neutrons (13 data sets), gamma quanta (65 data sets) and charged particles (34 data sets) were performed. Product Description popup.authors Pishchal Elina Yo. popup.nrat_date 2021-02-18 Close