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Information × Registration Number 0216U010220, 0116U004398 , R & D reports Title Scattering and radiation of high energy charged particles in thin layers of crystalline and amorphous substance popup.stage_title Head Shul'ga Nikolai Fedorovich, Registration Date 23-12-2016 Organization National Science Center "Kharkiv Institute of Physics and Technology popup.description2 The orientation dependence of the probability of scattering of high-energy charged particles at large angles, which is linearly related to the probability of close collisions in the straight and bent crystal was investigated. It is shown that in the case of bent crystal the lowest value of this probability corresponds to stochastic deflection mechanism, and the highest - to volume reflection on bent crystal planes. Explained the presence of close collision probability sharp peaks in the straight crystal at the transition from crystal planar channeling to the above-barrier movement. Investigated physical reasons due to which the oscillation dependency of the radiation spectral density of high-energy electrons on two thin amorphous targets take place. It is shown that this effect is possible in conditions of strong nondipole radiation on each target and due to the peculiarities of radiation of "half-naked" electron in its rectilinear path between the plates. It is shown that the spectral-angular distribution of radiation after two successive scattering through large angles has three cones of radiation in the directions of primary, intermediate and final movement of particle in the frequency range for which the coherence length of the radiation process is close to the distance between the plates. Product Description popup.authors Бондаренко Микола Вікторович Кириллін Ігор Володимирович Трофименко Сергій Валерійович Трутень Валентин Іванович Фомін Сергій Петрович Шульга Сергій Миколайович popup.nrat_date 2020-04-02 Close