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Registration Number

0224U033374, (0121U109829) , R & D reports

Title

Generation and diagnostics of powerful plasma flows, development of highly efficient ion-plasma sources for thermonuclear and technological applications.

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Дослідження формування стійких у просторі та часі магніто-плазмових конфігурацій у потоках плазми, що стискаються. Проведення вимірювання параметрів плазми на установках «Ураган-2М», та TJ-II за допомогою діагностичних систем зондування плазми пучками важких іонів, їх модернізація та порівняння результатів, які одержані на цих установках.

Head

Garkusha Igor Ye., Доктор фізико-математичних наук

Registration Date

26-12-2024

Organization

National Science Center "Kharkiv Institute of Physics and Technology"

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The proposed developments are aimed at solving the most important problems of high-temperature plasma physics and future thermonuclear energy systems. The peculiarities of the interaction of plasma with surfaces of complex geometry selected for the most energy-loaded sections of a thermonuclear reactor will be studied. Development of physical bases of generation and diagnostics of powerful plasma flows, development of highly efficient ion-plasma sources for thermonuclear and technological applications Development of methods of plasma probing by beams of accelerated particles. Analysis of plasma parameters at thermonuclear installations depending on discharge conditions. Studies of plasma parameters will be performed on stellarators Hurricane-2M (Kharkov) and TJ-II (Madrid) using diagnostic complexes on accelerated beams of cesium ions and sodium atoms. Diagnostic complexes developed in the IFP NSC KIPT will be used. On the Hurricane-2M stellarator it is planned to measure plasma parameters with a diagnostic complex on heavy ion beams and a complex on atomic beams in one plasma cross section, which will allow to carry out a comparative analysis of the obtained results. Also, a comparative analysis of the data will be performed on the basis of the results obtained on the diagnostic complexes on the beams of heavy ions of the Hurricane-2M and TJ-II stellarators. Development of technologies for ion-plasma synthesis of the latest protective, antibacterial, bioinert, multilayer coatings based on oxides and nitrides of metals of the transition group (Al, Ti, Zr, Nb) on the surface of medical implants, determination of optimal coating parameters for different types of medical implants .

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 A diagnostic complex based on probing plasma in a TJ-II stellarator simultaneously with two beams of heavy ions was used for the first time. That made possibility to investigate the mechanisms of self-organization of the plasma cord and the influence of intrinsic Alphenov modes (AM) in plasma on the conditions of plasma retention in a closed magnetic trap of the stelorator type. It is considered as an alternative to a tokamak-based fusion reactor. It has been experimentally shown that in the presence of zonal fluxes in the region of the plasma nucleus, the equipotential potential surfaces in the plasma correspond to vacuum magnetic surfaces. A study of Alfvén's eigenmodes showed their radial localization and poloidal asymmetry of potential and density oscillations due to AM. The obtained results will improve the calculation models to achieve the most optimal conditions for plasma retention and to achieve significantly increased plasma density and temperature values in next-generation thermonuclear devices. The peculiarities of the generation of plasma flows by quasi-stationary accelerators with different duration of the discharge pulse have been analyzed. It has been shown that the presence of an external magnetic field in the accelerator channel significantly affects the stability of the generated flows in space and time. The results can be used to improve the design of new generation plasma accelerators for their use in simulation experiments that simulate transient phenomena in a fusion reactor, as well as for imitation of astrophysical phenomena.

Product Description

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Volkova Yuliia Ye
Harkusha Ihor Ye.
GERASHENKO Stanislav S.
Makhlai Vadym О.
Taran Anton V.