Search academic texts

Information × Registration Number 0222U002252, 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  The results of studies of collective motion in nuclear fission and nuclear fission mechanisms, processes of formation of nuclear fission fragments, the main scientific and technical problems of creating new techniques for generating powerful beams of atmospheric gas ions designed for use in various sectors of the economy are presented. The peculiarities generation and transformation of beams of charged particles of low and especially ultralow energy are determined. The optimal methods of compensation of Coulomb forces of destruction of intense beams of low-energy charged particles are established, especially at the initial stages of their production and acceleration. In section 1 the statistical approach to the formation of nuclear fission fragments is discussed in detail. The full potential of nuclear interaction is obtained taking into account different parameterization of the nuclear part of the potential and its dependence on the distance between the centers of mass of interacting nuclei for almost symmetric system 100Zr + 101Nb, for asymmetric system 126Xe + 75Co and for the most asymmetric system 151La + 50Cr reactions α + 197Au → fission. The mass yields of fission fragments for the reaction α + 197Au → fission were obtained for various parameters of the nuclear potential proposed by Winter (Winther), Krappe-Nix-Sirk (KNS), Blocky, and others. (Proximity 77), Denisov in 2002 (Frozen) and 2015 (D 2015). It was found that for the α + 197Au → fission reaction, the parameterization of the nuclear part of the potential, introduced by Denisov in 2015 (D 2015), agrees best with the experimental data. The yields of the fission mass fragments by this parameterization of the nuclear part of the potential are well described without taking into account any fitting parameters. It is shown that parametric potentials lead to close values of fission fragment distributions, as different potentials for symmetric and asymmetric systems systematically give overestimated or und Product Description popup.authors Ivanov Yuriy V. Bondarkov Dmytro M Davidovskaya Oksana Ivanivna Zheltonozhskyi Viktor O Kovalinska Tetiana V. Kolokolnikova Valentina P. Kulich Nadiya Vladislavivna Mayevska Tetiana M Margitych Tetyana O Mykytiuk Taras V. Mikhailyuk Vadim Petrovich Nesterov Vasily Olexandrovich Onipchenko Maria T Parkhitko Yuliia M. Petrosyan Eduard Ye. Pilipenko Mykola O Plujko Volodymyr Andriyovych Rovenskykh Yevhen P Savrasov Andriy Mukolayovuch Sadovnikov Leonid V Sakhno Viktor Ivanovuch Sydorenko Leonid P Tretyak Volodymyr I Khomenkov Volodymur Petrovuch Chaplynskyi Roman Yu. popup.nrat_date 2022-03-09 Close