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Information × Registration Number 0218U006007, 0116U007566 , R & D reports Title Research, development and creation of new source of erosion plasma, microdroplets free. popup.stage_title Head Goncharov Alexy Antonovich, Registration Date 06-03-2018 Organization Institute of physics NASU popup.description2 The combined assembly of a plasma source - a plasma lens is an axially symmetric system with an erosive source of vacuum arc plasma and a plasma-optical lens on permanent magnets, which makes it possible to create crossed electric and magnetic fields that significantly affect the parameters of the propagating ion-plasma flow. The presence of fast electrons in the case of a negative potential at the central electrode is confirmed by various methods of investigation. The existence of such electrons makes it possible to substantially increase the ionization degree of the plasma multicomponent flow of the erosion source due to a significant additional evaporation of the micro-droplet fraction. Various operating modes of a plasma-optical filter (a modified cylindrical plasma lens with non-equipotential electrodes) and a combined plasma source-lens assembly as a whole are investigated. During the research, the characteristics of the flow of a dense low-temperature plasma propagating through a filter with crossed electric and magnetic fields were studied. A significant effect of the configuration of the electrostatic over-thermal volume field on the plasmadynamic parameters of the low-energy plasma flow propagation has been established. The self-focusing effect of the ion-plasma flow is obtained under the condition that the central electrode of the lens is under the floating potential. This effect is also manifested when there is a positive or negative potential on the central electrode of the lens. Previous assumptions about the mechanisms responsible for the appearance of these effects consist in the formation of fast electrons in the volume of the lens in the case of a negative potential at the central electrode, which leads to the creation of a polarization electric field on the axis of the system that facilitates the compression of the ion flux to the axis. In the case of a positive potential, the central electrode becomes an additional anode of the vacuum arc discharge, but at the same time, a focusing volumetric electric field is partially preserved due to the plasma-optical effect of the magnetic isolation of electrons and the equipotentialization of the external magnetic field lines. The corresponding physical estimates and computer simulation in conditions close to the experimental ones are in good agreement. Product Description popup.authors Баженов Володимир Юрійович Ганжа Генадій Дмитрович Гончаров Олексій Антонович Добровольський Андрій Миколайович Літовко Ірина Валентинівна Найко Ірина Вікторівна Піун Віктор Михайлович Проценко Іван Макарович popup.nrat_date 2020-04-02 Close