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Information × Registration Number 0222U002705, 0116U004450 , R & D reports Title The study of nuclear fission in the low energy region, the development of new methods of detection of fission products and the study the physical processes in the beams of ions popup.stage_title Head Denisov Vitaly Yu., Доктор фізико-математичних наук Registration Date 15-02-2022 Organization Institute of Nuclear Research of the National Academy of Sciences of Ukraine popup.description2 The experimental values of the ratio of the fission width to the neutron evaporation width for 15 nuclei were studied. The values of the fission barrier heights for these nuclei were obtained using a statistical approach. A model for describing the characteristics of fission fragments in which there are configurations with two, three, and four bodies is proposed. Configurations with division into three and four bodies corresponding to one and two α-particles located between heavy fragments are taken into account. The mass and energy distributions of the fission fragments, as well as the mass dependence of the average number of neutrons evaporating by the fragments are well described in the model. Analytical expressions for the amplitudes and observed characteristics of elastic proton scattering by 40Ca nuclei in the first and second Born approximations are obtained. A simple method for estimating the average spectrum of gamma radiation, induced by thermal neutron absorption by 113Cd, is proposed. The study of isotopic composition and vertical distribution in the bottom sediments of the cooling pond of the Tchernobyl nuclear power plant is described. Digital algorithms for the formation of the spectrometric signal of gamma spectrometers based on germanium detectors have been studied. It is established that the algorithm of exponential formation with a flat vertex demonstrates the best resolution. The cycle of experimental research on the laboratory stand is described. The processes of formation, mechanisms of ion generation, and motion in the atmosphere of intense flows of charged particles of low and ultralow energy are studied. The optimization of the parameters of application of microlayers of zeolite 3A-carbon coatings by spin-coating on glass substrates was investigated. The final report contains a detailed report on the results of the 5th stage, which were obtained in 2021. A list of the main results for the 1st-4th stages of work by year (2017-2020) is given. Product Description popup.authors Ivanov Yuriy V. Babak Olexandr V Bondarenko Yevgeniya V Bondarkov Dmytro M Davidovskaya Oksana I. Zheltonozhsky Viktor O. Kovalinska Tetiana V. Kolokolnikova Valentina P. Kravchenko Oksana S Kulich Nadiya V. Margitych Tetyana O. Mykytiuk Taras V. Mikhailyuk Vadim P. Nesterov Vasily O. Onipchenko Maria T. Parkhitko Yuliia M. Petrosyan Eduard Ye. Plyuyko Volodymyr A. Savrasov Andriy M. Sadovnikov Leonid V Sakhno Victor I. Khomenkov Volodymur P. Chaplynskyi Roman Yu. popup.nrat_date 2022-03-09 Close