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Information × Registration Number 0308U003048, 0106U002234 , R & D reports Title Integrated investigation of wave processes in electron beams and gas discgarge plasma popup.stage_title Оптимізація умов для генерації хвиль Head Azarenkov Mikola Olexiyovich, Доктор фізико-математичних наук Registration Date 25-02-2008 Organization Kharkov national university named after V.N. Karazin popup.description2 Subject of investigation is plasma-beam systems. Purpose of the work: carrying out complex investigations of charged particles and waves interaction with plasma. Method of investigation: experimental and theoretic. It has been constructed the experimental device for creation of non-relativistic electron bunches with the help of Bernstein-Green-Kruscal waves. The bunches obtained are generated with the frequency of order of 1 GHz. This bunches are represented as stable formation with the length of 3 mm and diameter of 6 mm. It has been created the theoretical model that describes nonlinear dynamics of high frequency potential SW excitation by the electron beam that propagates in metal cylindrical discharge structure, partially filled by the uniform plasma. Tubular electron beam is characterized by such parameters as: initial velocity, density, inner and outer radii. It has been used the electron beam with density much less that density of plasma. This beam is entirely placed in plasma region (outer radius of tubular cylindrical beam is not exceed the plasma column radius). There is a vacuum gap between plasma column and metal cylinder. The cylindrical structure that is partially filled by plasma is placed in external uniform steady axial magnetic field. The value of the magnetic field is such that electron cyclotron frequency is much less than langmuir plasma frequency and at the same time much greater that langmuir frequency of electron beam. In such conditions the magnetic field confines the movement of beam electrons in the direction transversely to external magnetic field in such way that it is possible to consider the movement of beam particles as one-dimensional. At the same time this magnetic field does not influence on the movement of electrons in plasma. Product Description popup.authors popup.nrat_date 2020-04-02 Close