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Information × Registration Number 0213U007015, 0108U002918 , R & D reports Title Nuclear solid-state interactions and electromagnetic properties of nuclei popup.stage_title Head Levon Alexander, Registration Date 20-03-2013 Organization Scientific Center "Institute for Nuclear Research" of National Academy of Sciences of Ukraine popup.description2 Investigations in the fundamental direction are presented in five sections of the report. (A). It is shown that the g-factors of Sn isotopes can be very sensitive to the single-particle structure near the Fermi surface. Sensitivity may be such that the experimental g-factors in exotic nuclei can be extremely useful even in the cases where the accuracy of the experiment is limited. (B). Spectroscopy of 228Th nuclei in the (p, t) reaction allowed to obtain information about 160 excited states, most of which was observed for the first time. The firm assignment of the spin 0+ have been made for 18 excited states and the spin identification of the remaining states was suggested. Based on this information the collective bands have been identified and the moments of inertia have been obtained for 0+ states, what sheds light on the structure of these excitations. (C). As a continuation of the analysis of the experimental data on the collective states in 230Th from the reactions (p, t) and the identification of more than 200 levels, the report presents the theoretical analysis of these data. They are compared with spdf-IBM and QPM calculations and conclusions regarding the structure of the excited states, especially of the 0 + states, was made, namely, the domination of the two-phonon structure in combination with the pairing vibrations. (G). The difference of the nuclear masses of thorium and uranium (from one hand) and tungsten (on the other hand), was derived from the (p,t) calibration experiments on these nuclei. (D). The interpretation of the problem of the "conflicting coupling" of the odd nucleons in the odd-odd nuclei is considered in the report. A theory is suggested to explain the compression of the collective spectra in the odd-odd nuclei in comparis neibouring nuclei. (E). The isomeric ratios are investigated in the nuclei 104m,gAg, 110m,gIn, 108m,gIn at the gamma excitation. Explanation of the information obtained achieved using the program TALUS which includes analysis of almost all processes of excitation in the reaction (гамма, xn). Second direction for the theme investigation concerns of the applied nuclear physics and of the accelerated particles influence on condensed substance. Results are summarized in three section of the report. (A). Two new methodical developments have been described. In one of them the question is about the distant control system by a target manipulator. This is component of the installation on the tandem accelerator. Second one is the backscattering technique at the KN-3000 electrostatic accelerator, which has been put into operation recently. (B). Surface layers of gold-silicon structure have been investigated by Rutherford backscattering and particles induced X-ray emission methods. The obtained data about the layer thickness may by used with technological purpose. It has been also discovered that the thickness of the gold-silicon interface layer correlates firmly with the current value of alpha particles incident on the target during a spectrum set. (C). The response of alanine and barium dithionate EPR dosimeters to proton irradiation with energies ranging from 6.6-25 MeV has been investigated. The results actual for dosimetry of a proton irradiation in radiotheraphy Product Description popup.authors Арцимовіч Михайло Володимирович Ковгар Ігор Борисович Матвєєва Валентина Федірівна Носенко Юлія Вікторівна Онищук Віктор Анатолійович Сорока Віктор Іванович Шевченко Констянтин Павлович Шевчук Анатолій Антонович popup.nrat_date 2020-04-02 Close