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Information × Registration Number 0223U000849, 0121U109166 , R & D reports Title Investigation, development and optimization of linear ion accelerators (based on alternating phase focusing and H-resonators) for power engineering, nuclear physics and radiation technologies. Research and application of transient, parametric and characteristic X-ray radiation popup.stage_title Head Manujlenko Oleg V., Кандидат фізико-математичних наук Registration Date 20-01-2023 Organization National Science Center "Kharkiv Institute of Physics and Technology" popup.description2 The purpose of the work is the development of accelerators and their use in atomic and thermonuclear energy. The sputtering yields (SY) were calculated for W and EI-993 steel when they were irradiated with helium ion beams at energies of 120 keV and 4 MeV. SY for W is determined by main element - W, the content of which in studied samples is ≥ 99.5%. SY of steel EI - 993 is determined by iron and chromium, the content of which is 12%. It was calculated spatial profiles of helium deposition, damage, ionization, and phonon excitation in W and EI-993. The spectra and spatial distribution of secondary particles in a target made of natural uranium during its irradiation with beams of protons, deuterons, and carbon were studied. Experimental data compared with calculations (Geant4 and MARS15 codes). The results of experiments on ionization energy loss of protons in the depleted layer of a silicon detector, the thickness of which was smoothly adjusted in the range from 0.3 to 10 mm, are presented. Experiments confirm the validity of the Landau theory, taking into account the noise of the spectrometer, but the experimental width of the Landau peak systematically exceeds the calculated one. A piezoelectric accelerator built on quartz crystals as piezoelectric elements was studied. It has been shown experimentally that efficiency of such an accelerator strongly depends on the capacitance of the piezoelectric element. The piezoelectric accelerator is built on piezoelectrics with a large capacity, giving a higher charge to high-voltage electrode and providing a higher efficiency of the accelerator. A solenoid was developed for the helium ion beam transportation line from the injector (120 keV) to the POS-4 accelerator (4 MeV), its power supply system, as well as a camera for irradiating samples of structural materials with helium ions with an energy of 120 keV. The irradiation chamber and solenoid will allow several times the current of helium ions on the irradiated targets. Product Description popup.authors Voronko Volodymyr O. Zajtsev Borys V. Manuilenko Oleh V. Sotnikov Volodymyr V. Tishkin Sergii S. Shchagin Oleksandr V. popup.nrat_date 2023-01-20 Close