Search academic texts

Information × Registration Number 0214U000912, 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 24-09-2014 Organization National Science Center "Kharkiv Institute of Physics and Technology popup.description2 A linearly-polarized photon beam was created in the facility MAX-lab (Lund, Sweden), based on the coherent bremsstrahlung of electrons with energy E0 = 192.7 MeV in a diamond crystal thickness of 0.1 mm. Measurements of the spectrum of coherent bremsstrahlung for different crystal orientation of the crystallographic and collimation photon beam were carried out, as well as characteristics of a linearly polarized beam were studied. The calculations of the spectra and polarization were made also. The theory describes well the observed experimental features of the spectrum of coherent bremsstrahlung, taking into account the multiple scattering of electrons in the crystal, beam collimation of gamma rays. It is shown that at electron energies ~200MeV range where it is possible to carry out photonuclear experiments with linearly polarized beam may be from the region of giant resonance and up to 80-90 MeV if it is applied strong collimation gamma radiation ~0.4. Test process measurement of photo disintegration deuteron using conventional and linear polarization of bremsstrahlung was submitted. The registration conditions of protons procedure dE-E using a telescope of silicon microstrip single-sided detectors and crystal CsI were studied. The cross section and the reaction cross section asymmetry photo disintegration deuteron in the energy range 40-80MeV was obtained. The results of measurements within the accuracy of the data are in good agreement with data in the literature. The research shows that on the device with an electron energy of 200MeV it is possible to obtain a beam suitable for the photonuclear experiments with linearly polarized photons, in particular to explore the photon processes in the energy range of giant dipole resonance and almost to the pion production threshold. Product Description popup.authors Бочек Георгій Леонідович Бурдейний Дмитро Дмитрович Васильєв Геннадій Петрович 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