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Information × Registration Number 0222U002729, 0120U102741 , R & D reports Title Plasma-dielectric wakefield accelerator with profiled sequence of relativistic electron bunches popup.stage_title Head Onishchenko Ivan M., Доктор фізико-математичних наук Registration Date 15-02-2022 Organization National Science Center "Kharkiv Institute of Physics and Technology" popup.description2  Theoretical and experimental studies of the wakefield excitation in a plasma-dielectric waveguide structure by a non-resonant sequence of relativistic electron bunches have been carried out. Parameters of the structure and the sequence of bunches were chosen so that the transformation ratio increased monotonically with the number of bunches; namely - with increasing number of bunches the total accelerating wakefield increases and the retarding field for all bunches was equally small. The frequency of the bunches determined by the linac “Almas-2” remains the same fm = 2.805 GHz, and the geometry of the dielectric structure changes in such a way (a = 2.93 cm, b = 4.19 cm,  = 2, 045) that the eigenwavelength  , excited by bunches, together with the length of the bunch Lb was equal to the distance between the bunches L =  + Lb. An analytical theory is elaborated and numerical simulation of the wakefield excitation in a plasma-dielectric waveguide structure by a non-resonant sequence of electron bunches is carried out. The sequence of electron bunches linearly profiled by charge is experimentally realized. The dielectric structure is calculated and fabricated that satisfies the above conditions. In the experiment, the microwave field of the excited wakewave is measured. Product Description popup.authors Galaydych Konstantin Viktorovich Linnik Anatolij Fedorovich Onishchenko Ivan M. Prystupa Valeriy Ivanovich Sotnikov Gennadij Vasyl'ovych popup.nrat_date 2022-03-09 Close