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Information × Registration Number 0223U000546, 0121U109179 , R & D reports Title Theoretical and experimental study of the generation of high-power pulsed electromagnetic radiation in devices of a new type  nonlinear transmission lines with plasma-like filling, which do not use electron beams as the primary energy source. Improvement of special sources of gamma and microwave radiation for testing the stability and compatibility of the element base and systems of electronic equipment and further development of the radiation-beam method to study the properties of structural materials and reactor materials. popup.stage_title Head Lonin Yurii F., Доктор технічних наук Registration Date 12-01-2023 Organization National Science Center "Kharkiv Institute of Physics and Technology" popup.description2 Objects of the study 1. the electromagnetic (EM) oscillations of microwave range as generated in the vacuum-less, gyrotropic transmission lines that do not employ electron beams as primary sources of energy; 2. modifications of common structural materials and such for constructing nuclear reactors under the action of high-current relativistic electron beams (HCREB); methods for improving HCREB parameters at the exit from the ‘TEMP-B’ accelerator and increasing its operational stability. The work is aimed at – extending the range of output parameters (oscillation frequency, radiated power and pulse duration) of the vacuum-free generators built around gyrotropic transmission lines; – implementing the optimized versions of a generator of lasting EM oscillations which employs no electron beams (with the optimization reached through theoretical and numerical work); – developing techniques for surface modification and HCREB-aided application of harde-ning, heat resistant or protective coatings upon items of metal, ceramics or graphite; – increasing the X-ray bremsstrahlung output from the ‘Temp-B’ high current accelerator. Principal results: – 3-D numerical experiments have demonstrated the feasibility of generating lasting, low attenuating microwave oscillations under the Cherenkov synchronism conditions in a system that combines a periodic slow-wave structure and a nonlinear transmission line with gyrotropic properties (PS-NLTL); – a test bed, constructed for pioneering experiments on direct conversion of a pulsed current into regular microwave oscillations, and first oscillograms of weakly damped gigahertz-range oscillations at the PS-NLTL output; - methods of material surface modification, remote deposition of thin foils, sputtering using a gas plasma torch are presented; – a scheme is presented that ensures an increase in the output of bremsstrahlung X-ray radiation from the "TEMP-B" accelerator. Product Description popup.authors Batrakov Oleksii Borysovych Karelin Sergey Yu Magda Igor I. Ponomaryov Anatoliy G Sinitsin Viktor Georgievich Uvarov Viktor T. popup.nrat_date 2023-01-12 Close