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Information × Registration Number 0226U002887, (0121U109261) , R & D reports Title Investigation of the structure of the nucleus in reactions on charged particles and nuclear-physical methods for the study of nuclear energy materials popup.stage_title Інтегральні виходи в фотоядерних реакціях на ядрах ізотопів олова 118Sn та 124Sn в припороговій області енергій. Вимірювання диференціальних перерізів реакції радіаційного захвату протонів ядрами ізотопів хрому в області енергії протонів 1,2-2,8 МеВ. Head Dykyi Mykola Р., Доктор фізико-математичних наук Registration Date 09-03-2026 Organization National Science Center "Kharkiv Institute of Physics and Technology" popup.description1 The aim of the project is to study the behavior of RSF in the energy field of gamma quanta below the GDR maximum (Eg = 10.5 - 13.5 MeV), as well as testing on this experimental material various modern theoretical approaches for calculating E1-RSF. This information is relevant for the development of modern astrophysics, cosmology, reactor construction. The new experimental cross-sectional results will be used not only as input to astrophysical modeling of stellar nucleosynthesis, but also as new information for testing modern computer codes in statistical theory. In addition, the aim of this work will be to study the effect of gamma activation on the properties of nanoparticles of zirconium dioxide with their subsequent use for the sorption of actinides and catalysts in the conversion of hydrocarbons. popup.description2 The main research in the field of nuclear astrophysics concerns the fact that in nature isotopes of chemical elements heavier than helium were synthesized in stars at different stages of their development as products of various kinds of low-energy nuclear reactions. The origin of chemical elements, or rather isotopes of chemical elements that occur in nature, is due to astrophysical nuclear processes that occur during the evolution of hot stars. It is nuclear physics that must provide experimental, theoretical or estimated cross sections for a significant network of nuclear reactions caused by various particles. According to modern ideas, the vast majority of element isotopes were formed in radiative neutron capture reactions. The formation of the vast majority of nuclei heavier than Fe (Z=26) is due to the processes of slow (s-slow) and rapid (r-rapid) radiative neutron capture, i.e. (γ,n)-reactions. These isotopes, which have been called p-nuclei, can be synthesized in the γ-process, in which radiative proton capture reactions and photofission of the nucleus into (γ,n), (γ,p), (γ,ɑ) play significant roles. Measurements of differential cross sections of the radiative capture reaction of protons in the Cr(p,) reaction were carried out at a registration angle of θ=900 with the output of gamma quanta with energies of 237 keV (50Cr), 378 keV (52Cr), 156 keV (53Cr) and 126 keV (54Cr) in the energy range of 1.2-2.8 MeV on targets made of chromium of natural isotopic composition. nuclei of chromium isotopes in the proton energy range of 1.2-2.8 MeV. Previous works on the study of nuclear reactions of Cr(p,) were analyzed. It follows from these works that the gamma line, along which it is best to monitor the elemental analysis of chromium using the PIGE technique, is the 378 keV line on the 52Cr isotope. The results obtained (in particular, the resonance structure in the excitation function) are consistent with the data of other authors. Product Description popup.authors Mykola O. Kochnev Oleksand S. Kachan Andrii Y. Berezhnoi Ivan M. Shapoval Yurii H. Parkhomenko Konstantyn V. Shebeko Olena P. Medvedieva Yurii V. Liashko Serhii M. Utenkov Yevhen O. Skakun Dmytro V. Medvediev Viktoriiia V. Lisovska popup.nrat_date 2026-03-09 Close