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Information × Registration Number 0213U005711, 0111U009552 , R & D reports Title Research of radiation processes in crystalline targets, study of properties of coherent bremsstrahlung beams and research of processes of collision of protons and heavy ions in the field of ultra relativistic energies popup.stage_title Head Maslov Mykola Ivanovich, Кандидат фізико-математичних наук Registration Date 11-07-2013 Organization National Science Center "Kharkiv Institute of Physics and Technology popup.description2 Measurements of characteristics of the linearly polarized photon beam, produced at MAX-lab facility (Lund, Sweden) were carried out. The beam is generated at the process of coherent bremsstrahlung radiation of electrons with energy E0=192.7 MeV in a diamond crystal 0.1 mm thick. The spectra of the coherent bremsstrahlung were measured for different crystal orientations and collimation of the photon beam, when contribution to the coherent cross section give both one strong vector [0±2±2] and many vectors of the crystal reciprocal lattice. The measured spectra demonstrate all features of the coherent bremsstrahlung, which were observed at electron energies of ~1 GeV. It was performed comparison of the measured spectra with the corresponding theoretical computations. A theory well describes observed experimental features of the coherent bremsstrahluing spectra, after taking into account experimental factors: sizes and divergence of the electron beam, multiple scattering of electrons in the crystal, photon beam collimation. The calculations show that polarization of the photon beam in the maximum of the coherent bremsstrahlung can reach P ~0.5 in the giant resonance energy region, when for the beam production the vectors [022] are used and the collimation of the gamma-radiation in the angle is ~0.5 of electrodynamic angle. The results will be used for the coherent polarized photon beam production at NSC KIPT (LEA-300) facility for providing photo nuclear reactions of researches on light nuclei. Product Description popup.authors Бочек Георгій Леонідович Бурдейний Дмитро Дмитрович Васильєв Геннадій Петрович Волошин Володимир Костянтинович Ганенко Володимир Борисович Деєв Олексій Степанович Кіпріч Сергій Костянтинович Каплій Олександр Андрійович Мазілов Олексій Олександрович Маслов Микола Іванович Муравська Світлана Володимирівна Наумов Сергій Вікторович Овчинник Володимир Дмитрович Потін Сергій Михайлович Шуліка Максим Юрійович Яловенко Володимир Іванович popup.nrat_date 2020-04-02 Close