Protective properties of a multicomponent material when irradiated by electrons with an energy of 5 MeV and gamma radiation with an energy from 0.570 to 1.252 MeV
Pavlenko V. I.1, Sidelnikov R. V.1, Kashibadze V. V.1, Romanyuk D. S.1, Ruchiy A. Yu.1, Domarev S. N.1
1Belgorod State Technology University named after V.G. Shukhov, Belgorod, Russia
Email: vaslava.pavlenko@mail.ru, roman.sidelnikov@mail.ru, unir.bstu@gmail.com, romanyuk.dmitrij.98@bk.ru, artiem.ruchii.99@mail.ru, domarev542@gmail.com

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The synthesis of a multicomponent material intended for use as protection for astronauts and spacecraft equipment from cosmic radiation is presented. PTFE-4 was chosen as a binder for the multicomponent material. The following components were introduced into the matrix as fillers: bismuth oxide, tungsten carbide, titanium hydride fraction and boron carbide. The synthesis of the material was carried out through solid-phase compaction, followed by cooling to room temperature, pressing out with further sintering. Its physical and mechanical properties have been studied: the value of erosive wear, Vickers microhardness, elastic modulus. Experimental irradiation of a multicomponent material with gamma radiation was carried out. The values of the linear attenuation coefficient of gamma radiation and the mass attenuation coefficient of gamma radiation are calculated. A multicomponent material was irradiated with fast electrons in a vacuum. It has been established that at an absorbed electron dose of 5 MGy, a twofold decrease in the bending strength of the multicomponent material is observed. Keywords: multicomponent material, electron impact, γ-radiation, linear attenuation coefficient.
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