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Information × Registration Number 0221U106964, 0116U007022 , R & D reports Title The study of the excited states of nuclei and their cluster structure in nuclear interactions popup.stage_title Head Povoroznyk Orest M., д.ф.-м.н. Registration Date 23-12-2021 Organization Institute of Nuclear Research of the National Academy of Sciences of Ukraine popup.description2  Due to objective reasons, experimental correlation studies of α + 12C at E12C. = 120 MeV and excitation spectra of 4He, * Be and 12C nuclei to the excitation energy of 30 MeV (step 4) could not be performed. Studies of the excitation spectrum of the 6Li nucleus to the excitation energy of 26MeV were performed by kinematically complete study of three-particle reactions (3He (, p) d Q3 = -5.49MeB, 3H (, d) n Q3 = -6.25MeB and 3H t) n Q3 = -20.49MeВ) caused by the interaction of beams of accelerated alpha particles (E = 27.2 and 67.2 MeB) with tritium and helium nuclei3. As a result of a complete kinematic study of three-particle 3He (, p) d, 3H (, d) n and 3H (, t) n reactions, two-dimensional EpE, EdE and EtE spectra of p-d were obtained. - and t-matches, the analysis of which allowed us to obtain new information about the structure of excited levels of the 6Li nucleus For the first time, a kinematically complete study of the 3He (, p) d reaction on 3He nuclei of radiogenic origin accumulated in titanium-tritium targets was performed. For the first time, three unrelated excited levels in the energy range of the 6Li nucleus excitation energy from 7 to 14 MeV were observed, as well as two excited 6Li levels with excitation energies of 21.30 and 21.90 MeV], the existence of which was predicted by theoretical calculations in the late 1960s. The mechanism for moving the targets was modernized by replacing the mechanical position sensors of the target with optoelectronic ones, and replacing the stepper motor with a more accurate one on the U-120 cyclotron. Work continued on the program of conversion of gamma spectra to one calibration on energy without carrying out the calibration procedure (in the problem of summation of spectra). The variant of automatic selection in the working and basic spectra of the corresponding channels and construction on them of piecewise-linear gauge dependence is offered. Product Description popup.authors popup.nrat_date 2021-12-23 Close