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Information × Registration Number 0222U002312, 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 11-02-2022 Organization Institute of Nuclear Research of the National Academy of Sciences of Ukraine popup.description2  Section 1 is devoted to a detailed discussion of the statistical approach to the formation of nuclear fission fragments. The widths of the mass distributions of the 197Au and 209Bi fission fragments, which agree well with the experimental data, were calculated. Most of the experimental data were obtained by excitation of the nucleus by braking photons of different energies. Section 2 is devoted to a detailed discussion of a comprehensive software model of modern digital pulse signal analyzers using the Python programming language and its libraries for scientific calculations numpy and matplotlib. The model includes the ability to vary the parameters of the signal from the preamplifier: pulse amplitude, noise amplitude, the time constant of the front and rear pulse fronts, pole-zero compensation, and the ability to impose low-frequency noise on the oscillogram. Section 3 is devoted to a detailed examination of the methods of designing technical means for the generation of low-energy means. It is established that the peculiarity of designing technical means of generating low-energy electrons is the need to include in their composition a special complex system of beam release from the vacuum chamber of the accelerator into the atmosphere. A specialized stand has been set up to conduct experiments, test, and develop various design options. Section 4 is devoted to detailed studies of the "hot particles" and their interaction with micromycete strains were studied. For the first time, strains of micromycetes were isolated that convert 241Am from bound solid fuel particles to bioavailable forms. It was found that the accumulation of 241Am in these strains is much higher than the accumulation of 137Cs. Product Description popup.authors Ivanov Yuriy V. Babak Olexandr V Bondarkov Dmytro M Davidovskaya Oksana Ivanivna Zheltonozhsky Viktor O Kovalinska Tetiana V. Kolokolnikova Valentina P. Kulich Nadiya V Mykytiuk Taras V. Mykhailiuk Vadym Petrovych Moskalenko Dmytro Mykhajlovych Nesterov Vasily Olexandrovich Onipchenko Maria T Parkhitko Yuliia M. Petrosyan Eduard Ye. Pilipenko Mykola O Plyuyko Volodymyr A. Rovenskykh Yevhen P Savrasov Andriy Mukolayovuch Sadovnikov Leonid V Sakhno Victor I. Sydorenko Leonid P Tretyak Volodymyr I Khomenkov Volodymur Petrovuch Chaplynskyi Roman Yu. popup.nrat_date 2022-03-09 Close